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();
}
}