1 Write a method that takes two arrays of integers as param

1. Write a method that takes two arrays (of integers ) as parameters. The method should swap all of the values in both arrays. Assume that the arrays will be the same size and not empty.

2.Write a method that prints all the values in a 2-dimensionaWrite a method that prints all the values in a 2-dimensional array that it receives as a parameter. Assume that the array is an array of integersl array that it receives as a parameter. Assume that the array is an array of integers

Solution

TestArray.java

import java.util.Arrays;

public class TestArray {

  
   public static void main(String[] args) {
       int a[]= {1,2,3,4,5};
       int b[] = {5,4,3,2,1};
       swapArray(a,b);
       System.out.println(Arrays.toString(a));
       System.out.println(Arrays.toString(b));
       int c[][] = {{1,2,3,4,5},{2,3,4,5,6}};
       printArray(c);
   }
   public static void swapArray(int a[], int b[]){
       int temp =0;
       for(int i=0; i<a.length; i++){
           temp = a[i];
           a[i] = b[i];
           b[i] = temp;
       }
   }
   public static void printArray(int a[][]){
       for(int i=0; i<a.length; i++){
           for(int j=0; j<a[i].length; j++){
               System.out.print(a[i][j]+\" \");
           }
           System.out.println();
       }
   }

}

Output:

[5, 4, 3, 2, 1]
[1, 2, 3, 4, 5]
1 2 3 4 5
2 3 4 5 6