第十周Java作业
第十周Java作业
import java.util.Scanner;public class Text { public static void PX(){
Scanner input=new Scanner(System.in); int []a=new int[5]; int b;
System.out.println("请输入5个数"); for (int i = 0; i < a.length; i++) {
a[i]=input.nextInt();
} for (int i = 0; i < a.length; i++) { for (int j = i+1; j < a.length; j++) { if (a[i]>a[j]) {
b=a[i];
a[i]=a[j];
a[j]=b;
}
}
} for (int i = 0; i < a.length; i++) {
System.out.print(a[i]);
}
} public static void main(String[] args){
PX();
}
}
import java.util.Scanner;public class Text { public static void cc() {
System.out.println("请输入一个数");
jc();
} public static void jc() { int d = 1;
Scanner input = new Scanner(System.in); int a = input.nextInt(); for (int b = 1; b <= a; b++) {
d = d * b;
}
System.out.println("这个数的阶乘为" + d);
} public static void main(String[] args) {
cc();
}
}
import java.util.Scanner;public class Text { public static void cc() {
System.out.println("请输入一个年份");
pd();
} public static void pd() {
Scanner input = new Scanner(System.in); int a = input.nextInt(); if (a % 4 == 0 || a % 400 == 0 && a % 100 != 0)
System.out.println("是闰年"); else
System.out.println("不是闰年");
} public static void main(String[] args) {
cc();
}
}
import java.util.Random;import java.util.Scanner;public class Text { public static void mainMenu() {
Scanner input = new Scanner(System.in);
System.out.println("欢迎使用本系统");
System.out.println("1.登录");
System.out.println("2.注册");
System.out.println("3.幸运抽奖");
System.out.println("4.退出系统");
System.out.println("请选择："); int i = input.nextInt(); switch (i) { case 1:
login(); break; case 2:
register(); break; case 3:
xycj(); break;
}
} public static void register() {
Scanner input = new Scanner(System.in);
System.out.println("输入用户名");
String uname = input.next();
System.out.println("输入密码");
String xdm = input.next();
System.out.println("注册成功");
returnMain();
} public static void returnMain() {
Scanner input = new Scanner(System.in);
System.out.println("是否返回主菜单？Y/N"); if (input.next().equalsIgnoreCase("Y"))
mainMenu(); else
System.out.println("谢谢使用");
} public static void login() {
Scanner input = new Scanner(System.in);
System.out.println("输入用户名");
String uname = input.next();
System.out.println("输入密码");
String pwd = input.next(); if (uname.equals("admin") && pwd.equals("admin"))
System.out.println("成功"); else
System.out.println("失败");
returnMain();
} public static void xycj() {
Scanner input = new Scanner(System.in);
System.out.println("输入一个4位会员卡号"); int number = input.nextInt(); int c = number / 100 % 10;
Random r = new Random(); int a = (int) r.nextInt(10); if (c == a) {
System.out.println("是幸运会员");
} else {
System.out.println("不是幸运会员");
}
returnMain();
} public static void main(String[] args) {
mainMenu();
}
}
来源：https://www.cnblogs.com/wangjiong123/p/14761173.html