ex1.java

讲述各种各样的java初始编程 了解编程

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package chenchao3;

/**
 *
 * @author williechen
 */
public class Ex1 {

}

class Sup {

    private int feildInSup;

    Sup(int f) {
        this.feildInSup = f;
        System.out.println("sup :" + this.feildInSup);
    }
}

class Sub extends Sup {

    private int fieldInSub;

    Sub(int sup, int sub) {
       super(sup);
        this.fieldInSub = sub;
        System.out.println("sub : " + this.fieldInSub);
    }
}