Question

How to combine (concatenate) two integer arrays in Java

Answer 1

package javaapplication1;
 
import java.util.Arrays;

public class JavaApplication1 {
 
    public static void main(String[] args) {
 
        int[] arr1 = {1,2,3};
        int[] arr2 = {4,5,6};

        int[] arrays = new int[arr1.length + arr2.length];

        System.arraycopy(arr1, 0, arrays, 0, arr1.length);
        System.arraycopy(arr2, 0, arrays, arr1.length, arr2.length);
        
        System.out.println(Arrays.toString(arrays));    
 
    }
}
 
 
/*
 
run:
                    
[1, 2, 3, 4, 5, 6]
  
*/

 

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