Question

JAVA程序小问题输入三个数字后排序输出

需要只使用if-else 语句，将分别输入的三个数字自动按照从大到小的顺序排列后输出。
三个数需要从键盘输入后再比大小。

Answer 1

import java.util.*;

public class asd{
public static void main(String[]args){
Scanner input = new Scanner(System.in);
System.out.print("请输入第1个数：");
int num1=input.nextInt();
System.out.print("请输入第2个数：");
int num2=input.nextInt();
System.out.print("请输入第3个数：");
int num3=input.nextInt();
if(num1>num2){
if(num1<num3){
System.out.println(num3+">"+num1+">"+num2);
}
if(num2>num3){
System.out.println(num1+">"+num2+">"+num3);
}
if(num1>num3&&num2<num3){
System.out.println(num1+">"+num3+">"+num2);
}
}else{
if(num1<num3){
System.out.println(num3+">"+num2+">"+num1);
}
if(num2>num3){
System.out.println(num2+">"+num1+">"+num3);
}
if(num1>num3&&num2<num3){
System.out.println(num2+">"+num3+">"+num1);
}
}
}
}

Answer 2

import javax.swing.JOptionPane;
public class Paixu{
public static void main(String args[]){
String n1 = JOptionPane.showInputDialog("输入一个整数:");
String n2 = JOptionPane.showInputDialog("输入一个整数:");
String n3 = JOptionPane.showInputDialog("输入一个整数:");
int num1 = Integer.parseInt(n1);
int num2 = Integer.parseInt(n2);
int num3 = Integer.parseInt(n3);
if(num1-num3>=0){
int i = num1;
num1 = num3;
num3 = i;
}
if(num2-num3>=0){
int i = num3;
num3 = num2;
num2 = i;
}
if(num1-num2>=0){
int i = num2;
num2 = num1;
num1 = num2;
}
System.out.println("排序后为:"+num1+" "+num2+" "+num3);
}
}

Answer 3

public class a{
public static void main(String[] args){
int a = 1;
int b = 2;
int c = 3;
if(a>b){
if(a<c){
System.out.println(c+">"+a+">"+b);
}
if(b>c){
System.out.println(a+">"+b+">"+c);
}
if(a>c&&b<c){
System.out.println(a+">"+c+">"+b);
}
}else{
if(a<c){
System.out.println(c+">"+b+">"+a);
}
if(b>c){
System.out.println(b+">"+a+">"+c);
}
if(a>c&&b<c){
System.out.println(b+">"+c+">"+a);
}
}
}
}

Answer 4

public class orderby{
public static void main(int a,int b,int c){

if(a>b){
if(a<c){
System.out.println(c+">"+a+">"+b);
}
if(b>c){
System.out.println(a+">"+b+">"+c);
}
if(a>c&&b<c){
System.out.println(a+">"+c+">"+b);
}
}else{
if(a<c){
System.out.println(c+">"+b+">"+a);
}
if(b>c){
System.out.println(b+">"+a+">"+c);
}
if(a>c&&b<c){
System.out.println(b+">"+c+">"+a);
}
}
}
}