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  • 练习作业

    public class Phone {
        private String name;
        private double neicun;
        double yiyongneicun;
        double shengyvneicun;
        public String getName() {
            return name;
        }
    
    
        public void setName(String name) {
            this.name = name;
        }
    
    
        public double getNeicun() {
            return neicun;
        }
    
    
        public void setNeicun(double neicun) {
            this.neicun = neicun;
        }
        
        
        public double getYiyongneicun() {
            return yiyongneicun;
        }
    
    
        public void setYiyongneicun(double yiyongneicun)
        {
                this.yiyongneicun = yiyongneicun;
        }
        public void shengyvneicun()
        {
            neicun-=yiyongneicun;//==>neicun=neicun-yiyongneicun
            shengyvneicun=neicun;
    //        if(shengyvneicun<0)
    //        {
    //            System.out.println("您的内存不足");
    //        }
    //        else if(shengyvneicun==neicun)
    //        {
    //            System.out.println("您的内存已用完");
    //        }
    //        else
    //        {
            System.out.println("剩余内存:"+shengyvneicun+"G.");
    //        }
        }
    
        public Phone(String name, double neicun) {
            super();
            this.name = name;
            this.neicun = neicun;
        }
        
        public static void main(String[] args) {
            // TODO 自动生成的方法存根
            
            Phone myphone=new Phone("三星",100);
            System.out.println("手机品牌是:"+myphone.getName());
            System.out.println("内存是"+myphone.getNeicun()+"G的。");
            myphone.yiyongneicun=2;
            System.out.println("手机已用内存;"+myphone.yiyongneicun+"G.");
            myphone.shengyvneicun();
            //myphone.setYiyongneicun(1);
            
        }
    }
    作业

    手机品牌是:三星
    内存是100.0G的。
    手机已用内存;2.0G.
    剩余内存:98.0G.

    解除代码中注释部分,运行出错,跪求老师讲解。

    错误输出结果:

    手机品牌是:三星
    内存是100.0G的。
    手机已用内存;2.0G.
    您的内存已用完

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  • 原文地址:https://www.cnblogs.com/panyiquan/p/5248930.html
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