What are the values of the variables x, a, and b? : Questions « Operators « SCJP

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public class MainClass {
  public static void main(String[] argv) {

    int x, a = 6, b = 7;
    x = a++ + b++;

    System.out.println(x);
    System.out.println(a);
    System.out.println(b);
  }
}