StackOverflow2013

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POJava extends strange output
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copied!<p>I have written a small program in Java, a there is something I just do not understand.</p> <p>Program that I have wrote has 3 classes kingClass, masterClass, and workClass. workClass extends masterClass. </p> <p>Program: in the main class (kingClass) I have declared masterClass and workClass, and with the masterClass I have given values to variables x, and y. In the end of kingClass I have called a addNum function that sum two numbers from the masterClass. </p> <p>Now the problem: I expected when I run the program that it will give me a sum of two numbers I have given with input, not the sum of number that I have given value in constructor. </p> <p>How can write this program so that addNum returns the value of the sum of number I have enterd.</p> <p>Sorry for bad english, Thank you..</p> <p>kingClass</p> <pre><code>public class kingClass { public static void main(String[] args) { masterClass mClass=new masterClass(); mClass.setX(10); System.out.println(mClass.getX()); mClass.setY(5); System.out.println(mClass.getY()); workClass wClass = new workClass(); System.out.println(wClass.addNum()); } } </code></pre> <p>masterClass</p> <pre><code>public class masterClass { private int x; private int y; masterClass() { x=0; y=0; } public void setX(int a) {x=a;} public void setY(int a) {y=a;} public int getX() {return x;} public int getY() {return y;} } </code></pre> <p>workClass</p> <pre><code>public class workClass extends masterClass { int num=getX()+getY(); public int addNum() {return num;} } </code></pre>

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