Java Method Return Objects from methods

// Returning an object.
class Test {// w  w w .  j  ava  2 s  . c  om
  int a;

  Test(int i) {
    a = i;
  }

  Test createNew() {
    Test temp = new Test(a+10);
    return temp;
  }
}

public class Main {
  public static void main(String args[]) {
    Test ob1 = new Test(2);
    Test ob2;

    ob2 = ob1.createNew();
    System.out.println("ob1.a: " + ob1.a);
    System.out.println("ob2.a: " + ob2.a);

    ob2 = ob2.createNew();
    System.out.println("ob2.a after second increase: "
                        + ob2.a);
  }
}