【java】继承练习

末蓝、 2022-02-03 14:59 93阅读 0赞

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需求一：

public class Pro {
        
    	public String name;
    	public int id;
    	public int income;
    	public Pro() {
        
    		
    	}
    	public Pro(String name, int id,int income) {
        
    		this.name=name;
    		this.id=id;
    		this.income=income;
    	}
    	public void Work() {
        
    		System.out.println(this.name);
    		System.out.println(this.id);
    		System.out.println(this.income);
    	}
    	public String getName() {
        
    		return name;
    	}
    
    
    	public void setName(String name) {
        
    		this.name = name;
    	}
    
    
    	public int getId() {
        
    		return id;
    	}
    
    
    	public void setId(int id) {
        
    		this.id = id;
    	}
    
    
    	public int getIncome() {
        
    		return income;
    	}
    
    
    	public void setIncome(int income) {
        
    		this.income = income;
    	}
    
    
    	
    }
    //
    public class Jingli extends Pro{
        
    private int bonus;
    public Jingli() {
        
    	
    }
    public Jingli(String name, int id,int income,int bonus) {
        
    	this.name=name;
    	this.id=id;
    	this.income=income;
    	this.bonus=bonus;
    }
    
    
    public int getBonus() {
        
    	return bonus;
    }
    public void setBonus(int bonus) {
        
    	this.bonus = bonus;
    }
    public void Work() {
        
    	System.out.println(this.getName());
    	System.out.println(this.id);
    	System.out.println(this.income);
    	System.out.println(this.bonus);
    }
    }
    //
    public class T1 {
        
    	public static void main(String[] args) {
        
    		Pro r=new Pro("李四",121121,10000);
    		r.Work();
    		Jingli s=new Jingli("张三",120120,20000,5000);
    		s.Work();
    	}
    
    }

需求二：

public class Teach {
        
    public String name;
    public int age;
    public Teach() {
        
    	
    }
    
    public  Teach(String name,int age) {
        
    	this.name=name;
    	this.age=age;
    }
    public void XingWei() {
        
    	System.out.println(this.name+"需要吃饭");
    }
    public void Pross() {
        
    	System.out.println(this.name+"上课");
    }
    public String getName() {
        
    	return name;
    }
    public void setName(String name) {
        
    	this.name = name;
    }
    public int getAge() {
        
    	return age;
    }
    public void setAge(int age) {
        
    	this.age = age;
    }
    
    }
    //
    public class Stud extends Teach{
        
    	public Stud() {
        
    		
    	}
      public  Stud(String name, int age) {
        
    		this.name=name;
    		this.age=age;		
    		}
    	public void Pross() {
        
    		System.out.println(this.name+"听课");
    	}
    	
    
    }
    //
    public class T1 {
        
    	public static void main(String[] args) {
        
    		Pro r=new Pro("李四",121121,10000);
    		r.Work();
    		Jingli s=new Jingli("张三",120120,20000,5000);
    		s.Work();
    		Teach r1=new Teach("张老师",30);
    		r1.XingWei();
    		r1.Pross();
    		Stud s1=new Stud("王同学",20);
    		s1.XingWei();
    		s1.Pross();
    	}
    
    }

需求三：

public class Cat {
        
    	public String name;
    	public char fur;
    	public int leg;
    	public String getName() {
        
    		return name;
    	}
    
    	public void setName(String name) {
        
    		this.name = name;
    	}
    
    	public char getFur() {
        
    		return fur;
    	}
    
    	public void setFur(char fur) {
        
    		this.fur = fur;
    	}
    
    	public int getLeg() {
        
    		return leg;
    	}
    
    	public void setLeg(int leg) {
        
    		this.leg = leg;
    	}
    
    	public Cat() {
        
    		
    	}
    
    	public  Cat(String name,char fur,int leg) {
        
    		this.name=name;
    		this.fur=fur;
    		this.leg=leg;
    	}
    	public void XingWei() {
        
    		System.out.println(this.name+"需要吃饭");
    	}
    	public void Catchmouse() {
        
    		System.out.println(this.name+"在夜里抓老鼠");
    	}
    }
    //
    public class Dog extends Cat {
        
    public Dog() {
        
    		
    	}
    
    	public  Dog(String name,char fur,int leg) {
        
    		this.name=name;
    		this.fur=fur;
    		this.leg=leg;
    	}
    	public void Lookhome() {
        
    		System.out.println(this.name+"需要看家");
    	}
    
    }

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