Converting String to int array, java.lang.ArrayIndexOutOfBoundsException: 6

Question

Here is a little snippet of my code, which is attempting to convert a length 6 string into an int array.

int[] intArray=new int[6];
int i = 0;
String s = jTextField2.getText();
int strLength = s.length();
if(strLength != 6) {
  jTextArea1.setText("Not a valid length");
} else {
  for(i=0;i<6;i++) {
    intArray[i] = Integer.parseInt(String.valueOf(s.charAt(i)));
  }
}

This comes up with an out of bounds exception and I cant understand why.

Thanks for any help.

Looks like your code is ok, but jTextField2.getText() is returning null check that — Kris
– Kris, Commented Dec 11, 2013 at 3:33
Try with jTextField2.getText().toString(). Just a suggestion — SoulRayder
– SoulRayder, Commented Dec 11, 2013 at 3:35

Elliott Frisch · Accepted Answer · 2013-12-11 03:35:37Z

12

This

public static void main(String[] args) {
  int[] intArray=new int[6];
  int i = 0;
  String s = "123456";
  int strLength = s.length();
  if(strLength != 6) {
    System.out.println("Not a valid length");
  } else {
    for(i=0;i<6;i++) {
      if (!Character.isDigit(s.charAt(i))) {
        System.out.println("Contains an invalid digit");
        break;
      }
      intArray[i] = Integer.parseInt(String.valueOf(s.charAt(i)));
    }
  }
  System.out.println(Arrays.toString(intArray));
}

Prints

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

here.

answered Dec 11, 2013 at 3:35

Elliott Frisch

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