Oftmals müssen wir ein Array klonen, um seine ursprünglichen Elemente zu sichern. Wir haben einige spezielle Zeichenfolgen und Zahlen wie Palindromzahl, Palindromzeichenfolge und Armstrongzahl, und um ihre Besonderheit zu überprüfen, müssen wir das Array klonen. Um beispielsweise zu prüfen, ob ein String ein Palindrom ist oder nicht, konvertieren wir zunächst einen String in ein Zeichen-Array und klonen das char-Array als temporäres Array. Jetzt kehren wir die Elemente des char-Arrays um und vergleichen es mit dem temporären Array, das die ursprüngliche Zeichenfolge enthält.

Vereinfacht ausgedrückt müssen wir das Array klonen, wenn wir die Originaldaten sichern möchten. In Java gibt es vier Möglichkeiten, ein Array zu klonen:

Durch Kopieren von Array-Elementen

Dies ist die naive Art, ein Array zu klonen. Bei dieser Methode iterieren wir das ursprüngliche Array und fügen jedes Element des Arrays in ein anderes Array ein. Wir klonen das Array, indem wir Elemente auf folgende Weise kopieren:

CloneArrayExample1.java

 // import required classes and packages if any import java.util.Scanner; // create class CloneArrayExample1 to clone an array public class CloneArrayExample1 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use for loop to copy elements from originalarray clonearray (int i="0;" < originalarray.length; clonearray[i]="originalArray[i];" display of the original array system.out.println('elements array:'); system.out.print(originalarray[i] + ' '); cloned system.out.println('

elements clone clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone.webp" alt="Java Array Clone"> <h3>Using clone() Method</h3> <p>In the above method, we have iterated the original array to make a clone of it. We have another way that takes less time to clone the given array, i.e., <strong>the clone()</strong> method of the Object class. The syntax of the clone() method is as follwos:</p> <pre> protected Object clone() throws CloneNotSupportedException </pre> <p>Let&apos;s implement the code to clone an array by using Object&apos;s clone() method:</p> <p> <strong>CloneArrayExample2.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample2 to clone an array using clone() method public class CloneArrayExample2 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use clone() method of to clone originalarray clonearray="originalArray.clone();" display elements the original array system.out.println('elements array:'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + ' '); cloned system.out.println('

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-2.webp" alt="Java Array Clone"> <h3>Using arraycopy() Method</h3> <p>Just like the clone() method, we can also use the arraycopy() method of the System class available in the <strong>java.lang</strong> package. The arraycopy() method has the following syntax:</p> <pre> public static void arraycopy(Object src, int srcPos, Object dest, int destPos, int length) </pre> <p>Here, <strong>src</strong> defines the source array, <strong>srcPos</strong> defines the index from where copying should be started, <strong>dest</strong> defines the array in which elements will be copied, <strong>destPos</strong> defines the index from which the copied elements are placed in the clone array, and <strong>length</strong> is the size of the subarray to be copied.</p> <p>Let&apos;s implement the code to clone an array by using the System.arraycopy() method:</p> <p> <strong>CloneArrayExample3.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample3 to clone an array using System.arraycopy() method public class CloneArrayExample3 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use system.arraycopy() method to clone originalarray system.arraycopy(originalarray, 0, clonearray, size); display elements of the original array system.out.println('elements array:'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + ' '); system.out.println('

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-3.webp" alt="Java Array Clone"> <h3>Using copyOf() Method</h3> <p>Just like clone() and arraycopy() methods, we can also use copyOf() method of the Arrays class available in the <strong>java.util</strong> package. The copyOf () method has the following syntax:</p> <pre> public static int[] copyOf(int[] arr, int len) </pre> <p>Here, <strong>arr</strong> defines the original array, and <strong>len</strong> is the length of the array to get copied.</p> <p>Let&apos;s implement the code to clone an array by using arraycopy() method of Arrays class:</p> <p> <strong>CloneArrayExample4.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample4 to clone an array using arraycopy() method of Arrays class public class CloneArrayExample4 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyof() method to clone originalarray clonearray="Arrays.copyOf(originalArray," size); display elements of the original array system.out.println('elements array:'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + ' '); system.out.println('

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-4.webp" alt="Java Array Clone"> <h3>Using copyOfRange() Method</h3> <p>Lust like copyOf() method, Arrays class provide copyOfRange() method to clone an array. The copyOfRange() method is used to copy the elements of the specified range of the original array into clone array. The syntax of the copyOfRange() method is as follows:</p> <pre> public static int[] copyOfRange(int[] original, int from, int to) </pre> <p>Here, <strong>the original</strong> defines the original array, <strong>from</strong> defines initial index and <strong>to</strong> defines the final index of the element.</p> <p>Let&apos;s implement the code to clone an array by using arraycopyRange() method of Arrays class:</p> <p> <strong>CloneArrayExample5.java</strong> </p> <pre> //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println('elements array:'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + ' '); system.out.println('

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;></pre></size;></pre></size;></pre></size;></pre></size;>

Implementieren wir den Code zum Klonen eines Arrays mithilfe der clone()-Methode von Object:

CloneArrayExample2.java

Java-Multithreading

 //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample2 to clone an array using clone() method public class CloneArrayExample2 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use clone() method of to clone originalarray clonearray="originalArray.clone();" display elements the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); cloned system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-2.webp" alt="Java Array Clone"> <h3>Using arraycopy() Method</h3> <p>Just like the clone() method, we can also use the arraycopy() method of the System class available in the <strong>java.lang</strong> package. The arraycopy() method has the following syntax:</p> <pre> public static void arraycopy(Object src, int srcPos, Object dest, int destPos, int length) </pre> <p>Here, <strong>src</strong> defines the source array, <strong>srcPos</strong> defines the index from where copying should be started, <strong>dest</strong> defines the array in which elements will be copied, <strong>destPos</strong> defines the index from which the copied elements are placed in the clone array, and <strong>length</strong> is the size of the subarray to be copied.</p> <p>Let&apos;s implement the code to clone an array by using the System.arraycopy() method:</p> <p> <strong>CloneArrayExample3.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample3 to clone an array using System.arraycopy() method public class CloneArrayExample3 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use system.arraycopy() method to clone originalarray system.arraycopy(originalarray, 0, clonearray, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-3.webp" alt="Java Array Clone"> <h3>Using copyOf() Method</h3> <p>Just like clone() and arraycopy() methods, we can also use copyOf() method of the Arrays class available in the <strong>java.util</strong> package. The copyOf () method has the following syntax:</p> <pre> public static int[] copyOf(int[] arr, int len) </pre> <p>Here, <strong>arr</strong> defines the original array, and <strong>len</strong> is the length of the array to get copied.</p> <p>Let&apos;s implement the code to clone an array by using arraycopy() method of Arrays class:</p> <p> <strong>CloneArrayExample4.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample4 to clone an array using arraycopy() method of Arrays class public class CloneArrayExample4 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyof() method to clone originalarray clonearray="Arrays.copyOf(originalArray," size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-4.webp" alt="Java Array Clone"> <h3>Using copyOfRange() Method</h3> <p>Lust like copyOf() method, Arrays class provide copyOfRange() method to clone an array. The copyOfRange() method is used to copy the elements of the specified range of the original array into clone array. The syntax of the copyOfRange() method is as follows:</p> <pre> public static int[] copyOfRange(int[] original, int from, int to) </pre> <p>Here, <strong>the original</strong> defines the original array, <strong>from</strong> defines initial index and <strong>to</strong> defines the final index of the element.</p> <p>Let&apos;s implement the code to clone an array by using arraycopyRange() method of Arrays class:</p> <p> <strong>CloneArrayExample5.java</strong> </p> <pre> //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;></pre></size;></pre></size;></pre></size;>

Hier, src definiert das Quellarray, srcPos definiert den Index, von dem aus mit dem Kopieren begonnen werden soll, Start definiert das Array, in das Elemente kopiert werden, ZielPos definiert den Index, von dem aus die kopierten Elemente im Klon-Array platziert werden, und Länge ist die Größe des zu kopierenden Subarrays.

Implementieren wir den Code zum Klonen eines Arrays mithilfe der Methode System.arraycopy():

CloneArrayExample3.java

 //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample3 to clone an array using System.arraycopy() method public class CloneArrayExample3 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use system.arraycopy() method to clone originalarray system.arraycopy(originalarray, 0, clonearray, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-3.webp" alt="Java Array Clone"> <h3>Using copyOf() Method</h3> <p>Just like clone() and arraycopy() methods, we can also use copyOf() method of the Arrays class available in the <strong>java.util</strong> package. The copyOf () method has the following syntax:</p> <pre> public static int[] copyOf(int[] arr, int len) </pre> <p>Here, <strong>arr</strong> defines the original array, and <strong>len</strong> is the length of the array to get copied.</p> <p>Let&apos;s implement the code to clone an array by using arraycopy() method of Arrays class:</p> <p> <strong>CloneArrayExample4.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample4 to clone an array using arraycopy() method of Arrays class public class CloneArrayExample4 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyof() method to clone originalarray clonearray="Arrays.copyOf(originalArray," size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-4.webp" alt="Java Array Clone"> <h3>Using copyOfRange() Method</h3> <p>Lust like copyOf() method, Arrays class provide copyOfRange() method to clone an array. The copyOfRange() method is used to copy the elements of the specified range of the original array into clone array. The syntax of the copyOfRange() method is as follows:</p> <pre> public static int[] copyOfRange(int[] original, int from, int to) </pre> <p>Here, <strong>the original</strong> defines the original array, <strong>from</strong> defines initial index and <strong>to</strong> defines the final index of the element.</p> <p>Let&apos;s implement the code to clone an array by using arraycopyRange() method of Arrays class:</p> <p> <strong>CloneArrayExample5.java</strong> </p> <pre> //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;></pre></size;></pre></size;>

Hier, arr definiert das ursprüngliche Array und nur ist die Länge des Arrays, das kopiert werden soll.

Implementieren wir den Code zum Klonen eines Arrays mithilfe der Methode arraycopy() der Klasse Arrays:

CloneArrayExample4.java

 //import required classes and packages if any import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample4 to clone an array using arraycopy() method of Arrays class public class CloneArrayExample4 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyof() method to clone originalarray clonearray="Arrays.copyOf(originalArray," size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-4.webp" alt="Java Array Clone"> <h3>Using copyOfRange() Method</h3> <p>Lust like copyOf() method, Arrays class provide copyOfRange() method to clone an array. The copyOfRange() method is used to copy the elements of the specified range of the original array into clone array. The syntax of the copyOfRange() method is as follows:</p> <pre> public static int[] copyOfRange(int[] original, int from, int to) </pre> <p>Here, <strong>the original</strong> defines the original array, <strong>from</strong> defines initial index and <strong>to</strong> defines the final index of the element.</p> <p>Let&apos;s implement the code to clone an array by using arraycopyRange() method of Arrays class:</p> <p> <strong>CloneArrayExample5.java</strong> </p> <pre> //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;></pre></size;>

Hier, das Original definiert das ursprüngliche Array, aus definiert den Anfangsindex und Zu definiert den endgültigen Index des Elements.

Listen in Java

Implementieren wir den Code zum Klonen eines Arrays mithilfe der Methode arraycopyRange() der Klasse Arrays:

CloneArrayExample5.java

 //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;>