Java初学Text1

Java初学Text1

package javaClass2;

public class Student {
		  String name;
		  String sex;
		  int age;
	      double score;
	      double height;
	      double weight;
}
package javaClass2;

public class Students {
	  String name;
	  String hobby;
	  String classroom;
	  int age;
	 
}
package javaClass2;

public class Teacher {
		String name;
		String skill;
		String project;
		int techAge;
}

 

package javaClass2;

public class Demo {
	public static void main(String[] args) {
		Student stu=new Student();
		stu.name="27号";
		stu.age=21;
		stu.sex="男";
		stu.score=100;
		stu.height=180;
		stu.weight=55;
		System.out.println("学号:"+stu.name+"   年龄:"+stu.age+"    性别:"+stu.sex);
		System.out.println("身高"+stu.height+"  体重:"+stu.weight+"  成绩:"+stu.score);
		System.out.println("-----------------------------");
		Students stu0=new Students();
		stu0.name="张浩";
		stu0.age=10;
		stu0.classroom="51班";
		stu0.hobby="篮球";
		System.out.println(stu0.name);
		System.out.println("年龄："+stu0.age);
		System.out.println("就读于："+stu0.classroom);
		System.out.println("爱好："+stu0.hobby);
		System.out.println("-----------------------------");
		Teacher tec0=new Teacher();
		tec0.name="王老师";
		tec0.skill="计算机";
		tec0.project="使用JAVA语言理解程序逻辑";
		tec0.techAge=5;
		System.out.println(tec0.name);
		System.out.println("专业方向："+tec0.skill);
		System.out.println("教授课程："+tec0.project);
		System.out.println("教龄："+tec0.techAge);
	}
	
    
}

运行结果:

 

 

package javaClass2;

import java.util.Scanner;

public class Vistor {
	
	public void printPrice(){
		for (int i = 0; i <3; i++) {
		System.out.println("请输入姓名：");
		Scanner n=new Scanner(System.in);
		String name=n.next();
			if(!name.equals("n")){
				System.out.println("请输入年龄：");
				int age=n.nextInt();
				if(age<6||age>=60){
					System.out.println(name+"的年龄是："+age+",门票价格是：0元");
					
				}else if(age<12){
					System.out.println(name+"的年龄是："+age+",门票价格是：10元");
					
				}else {
					System.out.println(name+"的年龄是："+age+",门票价格是：20元");
					
				}
			
			}else{
				System.out.println("退出程序");
				
				
			}
		}
		
	}
}

package javaClass2;

public class Demovis {
	public static void main(String[] args) {
		Vistor v=new Vistor();
		v.printPrice();
	}

}

运行结果：

 

package javaClass2;

import java.util.Scanner;

public class Admin {
	String yh0="admin";
	 int core0=123456;
	public void login(String x,int y) {		
		if(x.equals(yh0)&&y==core0){
			Scanner n=new Scanner(System.in);
			System.out.println("请输入修改密码：");
			int newcore=n.nextInt();
			System.out.println("修改成功，您的密码为："+newcore);
		}else{
			System.out.println("用户名密码不匹配，没有权限");
		}
	}
	 
	

}
package javaClass2;

import java.util.Scanner;

public class Demoad {
	public static void main(String[] args) {
		Scanner n=new Scanner(System.in);
		System.out.println("请输入用户名：");
		String yh=n.next();
		System.out.println("请输入密码：");
		int core=n.nextInt();
		Admin ad=new Admin();
		ad.login(yh,core);
	}

}