What Is The Output Of The Following Java Codep Pre Langjava #479

 class SubtractionofNum { public static void main(String[] args) { Prog1 obj=new Prog1(); obj.callSub(); } public void callSub() { int theSum = sub(7, 3); System.out.print(theSum); }  public int sub(int value1, int value2) { return (value1 - value2); } }