Copy array in java

Java copy array

int[] a = {1,2,3,4,5};
int[] b = Arrays.copyOf(a, a.length);

Copy array in java

public static void arraycopy(Object source_arr, int sourcePos,
                             Object dest_arr, int destPos,
                             int len)
/* Parameters : 
source_arr : array to be copied from
sourcePos : starting position in source array from where to copy
dest_arr : array to be copied in
destPos : starting position in destination array, where to copy in
len : total no. of components to be copied
*/

How to copy array in java

// method 
public static int [] copyArray(int [] arr){
      int [] copyArr = new int[arr.length];
      for (int i = 0; i < copyArr.length; i++){
            copyArr[i] = arr[i];
       }
      return copyArr;
}

// Arrays. method 
int[] copyCat = Arrays.copyOf(arr, arr.length);

// System 
System.arraycopy(x,0,y,0,5); // 5 is array's length 

// clone 
y = x.clone();

Similar codes

1 vote436 views2 answers
Spring-boot java header Content-Type constant
Java Spring
0 vote502 views1 answer
How to add classpath in spring boot
Java Spring
0 vote390 views2 answers
How to find the largest number in java
Java
-1 vote371 views2 answers
JButton
Java
6 votes396 views6 answers
Binary Search Algorithm
Java
0 vote361 views1 answer
Java random number generator 6
Java
-1 vote430 views1 answer
@notblank annotation spring
Java Spring
0 vote380 views1 answer
Java program to search item from name in class
Java
0 vote362 views2 answers
How to send int value from one actvi to another in android
Java
0 vote410 views1 answer
Evaluateur d'expressions maths java
Java