学习练习 java面向对象封装汽车

package com.hanqi;

//汽车
public class Car {

    // 车牌
    private String CheP;
    
    // 油箱容量
    private double YouXRL = 40;
    
    // 总里程数
    private double ZongLC = 0;
    
    // 油耗
    private double YouH = 10;
    
    // 当前油量
    private double DangQYL = 0;

    public String getCheP() {
        return CheP;
    }

    public void setCheP(String cheP) {
        CheP = cheP;
    }

    public double getYouXRL() {
        return YouXRL;
    }

    public void setYouXRL(double youXRL) {
        YouXRL = youXRL;
    }

    public double getZongLC() {
        return ZongLC;
    }

    public void setZongLC(double zongLC) {
        ZongLC = zongLC;
    }

    public double getYouH() {
        return YouH;
    }

    public void setYouH(double youH) {
        
        if(youH >0)
        {
            YouH = youH;
        }
        else
        {
            System.out.println("油耗数据错误");
        }
        
    }

    public double getDangQYL() {
        return DangQYL;
    }

    public void setDangQYL(double dangQYL) {
        DangQYL = dangQYL;
    }

    public Car(String cheP) {
        super();
        CheP = cheP;
    }
    
    //方法
    //加油
    public void JiaYou(double youl)
    {
        if(youl < 0 )
        {
            System.out.println("不要偷我的油");
        }
        else if(youl > (YouXRL - DangQYL))
        {
            DangQYL = YouXRL;
            
            System.out.println("邮箱满了，装不下了");
        }
        else 
        {
            DangQYL += youl;
            
            System.out.println("加油量 = " + youl);
        }
     }
        //加油方法的重载，一次加满
        public  double JiaYou()
        {
            //计算
            double rtn = YouXRL - DangQYL;
            
            JiaYou(rtn);  //便于代码维护
            
            return rtn;
        }
        
    
    
    //行驶
    public void XingShi (double licheng)
    {
        if(licheng < 0 )
        {
            System.out.println("车不能这样开");
        }
        else
        {
            //当前油量
            DangQYL -= licheng * YouH /100;
            
            //总里程
            ZongLC += licheng;    
        }
        
    }
    
    
    
    
    
    
    
    
    
}

package com.hanqi;

public class Test11car {

    public static void main(String[] args) {
        // TODO 自动生成的方法存根

        Car car1 = new Car("鲁c12345");
        
        car1.setYouXRL(50);
        
        System.out.println("油箱容量 = " + car1.getYouXRL() );
            
        car1.JiaYou(40);
        
        System.out.println("当前油量 = " + car1.getDangQYL());
        
        car1.JiaYou();
        
        System.out.println("当前油量 = " + car1.getDangQYL() );
        
        
        car1.setYouH(7);
        
        //行驶
        
        car1.XingShi(100);
        
        System.out.println("当前油量 = "+ car1.getDangQYL());
        System.out.println("总里程 = " + car1.getZongLC());
        
        
        
        
        
        
    }

}