java 入门级示例源码(类 继承 入门示例)

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapp913;

import java.util.ArrayList;

/**
 *
 * @author wangwei
 */
public class Son extends Father{
    
    private String Name;
    private Father father;
    private String Country;
    
    public Son()
    {
        int r1 = (int) (Math.random() * 10000)   25000;
        int r2 = (int) (Math.random() * 10000)   25000;
        this.Name = "张" (char)r1 (char)r2;
    }
    
    public Son(Father father)
    {
        this.father = father;
        int r1 = (int) (Math.random() * 10000)   25000;
        int r2 = (int) (Math.random() * 10000)   25000;
        this.Name = father.getFirstName() (char)r1 (char)r2;
        this.Country=father.getCountry();
        father.addSon(this);
    }
    
    public void setFName(String fn){
        String old = Name.substring(1);
        Name = fn old;
    }
    
    @Override
    public String getName(){
    	 return this.Name;
    }
    @Override
    public String getCountry() {
        return this.Country;
    }
}

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资源文件列表

JavaApp913/JavaApp913/build/classes/.netbeans_automatic_build , 0
JavaApp913/JavaApp913/build/classes/.netbeans_update_resources , 0
JavaApp913/JavaApp913/build/classes/javaapp913/Father.class , 2358
JavaApp913/JavaApp913/build/classes/javaapp913/JavaApp913.class , 2379
JavaApp913/JavaApp913/build/classes/javaapp913/Son.class , 1510
JavaApp913/JavaApp913/build.xml , 3615
JavaApp913/JavaApp913/manifest.mf , 85
JavaApp913/JavaApp913/nbproject/build-impl.xml , 79885
JavaApp913/JavaApp913/nbproject/genfiles.properties , 475
JavaApp913/JavaApp913/nbproject/private/config.properties , 0
JavaApp913/JavaApp913/nbproject/private/private.properties , 183
JavaApp913/JavaApp913/nbproject/private/private.xml , 676
JavaApp913/JavaApp913/nbproject/project.properties , 3854
JavaApp913/JavaApp913/nbproject/project.xml , 518
JavaApp913/JavaApp913/src/javaapp913/Father.java , 1842
JavaApp913/JavaApp913/src/javaapp913/JavaApp913.java , 1626
JavaApp913/JavaApp913/src/javaapp913/Son.java , 1220