Convert int array to string variable [closed]

Probably Arrays.toString(int[]) is what you are looking for.

final int[] sample = new int[] {1, 2, 3};
final String arrayStr = Arrays.toString (sample);
System.out.println (arrayStr);

This should print [1, 2, 3].

Here is a fiddle for it.

int[] arr = new int[] { 1, 0, 1, 0 };
StringBuilder sb = new StringBuilder(arr.length);
for (int i : arr) {
  sb.append(i);
}
String s = sb.toString(); // 1010

If you don't mind having brackets around your string, and your numbers separated by a comma, you can use Arrays.toString as suggested by others.

This is one way of doing it:

String stringVar = java.util.Arrays.toString( intArray );

You can also do it manually like this

private static String format(int[] array) {
    StringBuilder sb = new StringBuilder();
    boolean needSeparator = false;
    for (int number : array) {
        if (needSeparator) {
            sb.append(", ");
        }
        if (number != 0) {
            sb.append("true");
        } else {
            sb.append("false");
        }
        needSeparator = true;
    }
    return sb.toString();
}

That would be especially useful if you want to use a special format. Above example will produce strings like "true, false, true"

And a fiddle.

Edit: oops, true should be != 0, not !=1. Corrected in above code, broken in fiddle