PassArray To Method , Pass By Value

  public class PassArrayToMethodExample {
  
  public static void doubleInt(int num){
    num= num*2;
    System.out.println(num);
  }
  
  public static void doubleArray(int []array){
  for (int i=0;i<array.length;i++)
    array[i] = array[i] * 2;
 } //end printArray


 public static void printArray(int []array){
   for (int i=0;i<array.length;i++)
     System.out.println(array[i]);
 } //end printArray


  
  public static void main(String[] args) {
   int num = 5;

   doubleInt(num);
   System.out.println(num);

   int a[] = {5,10,20,30,40};
   int b[] = {15,2,330,40};
   int c[] = {40};
   int d[] = {5,50,320,40,40,100,200,300,400};
   
   doubleArray(a);
   printArray(a);

 } //end main


}//end class