public class fff
public class Rectangle {
int length;
int width;
public void getPer() {
System.out.println("矩形的周长=" + (length + width) * 2);
}
public void getArea() {
System.out.println("矩形的面积=" + length * width);
}
public void showAll() {
System.out.println("长=" + length);
System.out.println("宽=" + width);
getArea();
getPer();
}
}
package sdd;
import java.util.Scanner;
public class Tese {
public static void main(String[] args) {
// TODO Auto-generated method stub
Rectangle a = new Rectangle();
Scanner input = new Scanner(System.in);
System.out.print("请输入长：");
a.length = input.nextInt();
System.out.print("请输入宽：");
a.width = input.nextInt();
a.showAll();
}
}
package Test;
public class Bijiben {
char yanse;
int cpu;
public void Showyanse() {
System.out.println("笔记本颜色为：" + yanse+"色");
}
public void Showcpu() {
System.out.print("cpu型号是：" + cpu);
}
}
package Test;
public class sed {
public static void main(String[] args) {
// TODO Auto-generated method stub
Bijiben a = new Bijiben();
a.yanse = '白';
a.cpu = 2020;
a.Showyanse();
a.Showcpu();
}
}
复制代码
package Test;
public class Person {
String name;
int nianling;
double shengao;
int tizhong;
public void sayHello() {
System.out.println("Hello,my name is " + name);
System.out.println(name + '、' + shengao + '、' + nianling + "岁");
}
}
package Test;
public class Constructor {
public static void main(String[] args) {
// TODO Auto-generated method stub
Person a = new Person();
a.name = "zhangsan";
a.shengao = 1.73;
a.nianling = 33;
a.sayHello();
Person b = new Person();
b.name = "lishi";
b.shengao = 1.74;
b.nianling = 44;
b.sayHello();
}
}
{
int x;
int y;
Point() {
System.out.println(x);
System.out.println(y);
System.out.println("调用后:");
}
Point(int x0, int y) {
x = x;
y = y;
System.out.println(x);
System.out.println(y);
}
void movePoint(int dx, int dy) {
dx = x + 100;
dy = y + 100;
System.out.println("p1的坐标为" + dx + "\n" + "p2的坐标为" + dy);
}
}
package bbt;
public class bbt {
public static void main(String[] args) {
// TODO Auto-generated method stub
Point p=new Point();
p.x=100;
p.y=200;
p.movePoint(p.x,p.y);
}
