Array; error question?

[wheehoowaffles]

I'm not sure if I this this right but when I run the code I get this:

contents of integer array x = 3
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1
at Reverse.main(Reverse.java:9)

I don't know what this mean so I was wondering if someone could explain it to me. Thanks in advance.

What I'm asked to do:

Given that the integer array y has the following elements : [1 2 3], what is the contents of integer array x after executing the following statements :
for (int i = 0; i < 3; i++) x[i] = y[2-i];

public class Reverse {
   public static void main( String[] args)
   {
      
      int[] y = { 1, 2, 3};
      int[] x = {0};
              
      for ( int i = 0; i < 3; i++ ) {
            x[i] = y[2-i];
           
           System.out.println( "contents of integer array x= " + x[i]);
      } 
    } 
}

[FlyNn]

On the second loop iteration it tries to access index x[1] and your x is what length?

EDIT:

ArrayIndexOutOfBoundsException is the program telling you: I am trying acces index 3, but your array is of length 2. So what up with that?

[wheehoowaffles]

Do I need to make x[i] the same length as y?

[FlyNn]

Do I need to make x[i] the same length as y?

Long answer:
Think logically. Your x is length of 1 and each loop iteration you want to add it into the next index and you loop 3 times.

Short answer:
Try and see what happens.

[wheehoowaffles]

Is this right?

public class Reverse {
   public static void main( String[] args)
   {
      
      int[] y = { 1, 2, 3};
      int[] x = { 1, 2, 3};
              
      for ( int i = 0; i < y.length; i++ ) {
	x[i] = y[2-i];
           
           System.out.println( "contents of integer array x = " + x[i] );
      } 
    } 
}