第八次作业

package wen;

 

public class Point {

 

int x;

    int y;

 

    public Point(int x0, int y0) {

        super();

        this.x = x0;

        this.y = y0;

    }

 

    public Point() {

        super();

    }

 

    public String movePoint(int dx, int dy) {

        x = dx + x;

        y = dy + y;

        return ("x为" + x + "y为" + y);

    }

 

    public static void main(String[] args) {

        Point p1 = new Point(2, 5);

        System.out.println(p1.movePoint(5, 5));

        Point p2 = new Point(4, 7);

        System.out.println(p2.movePoint(3, 7));

 

}

 

}

package wen;

 

public class Rectangle {

int length,width;

    public int getArea(int length,int width){

        return length*width;

    }

    public int getPer(int length,int width){

        return (length+width)*2;

    }

    public  void showAll(){

        System.out.println("长方形的长是"+length+"宽是"+width);

        System.out.println("周长是"+ (length+width)*2);

        System.out.println("面积是"+length*width);

    }

    

    public Rectangle(int length, int width) {

        this.length = length;

        this.width = width;

        

    }

    

    public static void main(String[] args) {

        // TODO Auto-generated method stub

        Rectangle r=new Rectangle(10, 10);

        r.showAll();    

 

    }

 

}

package wen;

 

public class computer {

 

char colour;

    int cpu;

 

    public void show() {

        System.out.println("我的颜色是：" + colour+"色" + ",型号是：" + cpu);

    }

 

    public computer(char colour, int cpu) {

        super();

        this.colour = colour;

        this.cpu = cpu;

    }

 

    public computer() {

        super();

    }

    

}

 

package wen;

 

public class test {

 

public static void main(String[] args) {

// TODO Auto-generated method stub

 computer s1=new computer();

         s1.colour='黑';

         s1.cpu=121;

         s1.show();

         computer s2=new computer('蓝',111);

         s2.show();

}

 

}

package wen;

 

public class Person {

 

String name;

    double height;

    int weight;

    int age;

    public void sayhello() {

        System.out.println("hello,my name is " + name);

        System.out.println("my height is " + height + "米");

        System.out.println("my weight is " + weight + "斤");

        System.out.println("my age is " + age + "岁");

 

}

 

}

 

package wen;

 

public class PersonCreate {

 

public static void main(String[] args) {

// TODO Auto-generated method stub

Person a = new Person();

        Person b = new Person();

        a.name ="zhangsan";

        a.age = 33;

        a.height = 1.73;

        a.weight = 120;

        

        b.name = "lishi";

        b.age = 44;

        b.height = 1.74;

        b.weight = 140;

        

        a.sayhello();

        b.sayhello();

}

 

}

package wen;

 

public class Constructor {

 

String name;

double height;

    int weight;

    int age;

    public Constructor (String name, double height, int weight,int age) {

super();

this.name = name;

this.height = height;

this.weight = weight;

this.age=age;

}

 

    public void sayhello() {

        System.out.println("hello,my name is " + name);

        System.out.println("my height is " + height + "米");

        System.out.println("my weight is " + weight + "千克");

        System.out.println("my age is " + age + "岁");

}

 

}

 

package wen;

 

public class sayHello {

 

public static void main(String[] args) {

// TODO Auto-generated method stub

Constructor  a=new Constructor ("zhangsan",1.73,55,33);

Constructor  b=new Constructor ("lishi",1.74,54,44);

a.sayhello();

b.sayhello();

 

}

 

}

package wen;

 

public class Vehicle {

 

    private String brand;

 

    private String color;

 

    private double speed;

 

    public Vehicle(String brand,String color){

 

       this.brand=brand;

 

       this.color=color;

 

      

 

    }

 

    Vehicle(String brand, String color, double speed) {

 

       super();

 

       this.brand = brand;

 

       this.color = color;

 

       this.speed = speed;

 

    }

 

    public void run(){

 

       System.out.println("这个汽车的品牌为"+this.brand+"这个汽车的颜色为"+this.color+"这个汽车的速度为"+this.speed);

 

}

 

}

 

package wen;

 

public class VehicleTest {

 

public static void main(String[] args) {

 

       Vehicle v=new Vehicle("benz","black");

 

       v.run();

 

       Vehicle v1=new Vehicle("benz","black",13);

 

       v1.run();

}

 

}