int a=40,b=21,c=12,d;

if(a>b){

d=a;

a=b;

b=d;

}

if(a>c){

d=a;

a=c;

c=d;

}

if(b>c){

d=b;

b=c;

c=d;

}

System.out.println("由小到大依次为："+a+b+c)

import java.util.*;

public class ThreeCompare {

public static void main(String[] args) {

int a, b, c;

Scanner input = new Scanner(System.in);

System.out.println("请输入三个整数：");

a = input.nextInt();

b = input.nextInt();

c = input.nextInt();

if (a > b) {

if (a > c) {

if (b > c) {

System.out.println(c + "<" + b + "<" + a);

} else {

System.out.println(b + "<" + c + "<" + a);

}

} else {

System.out.println(b + "<" + a + "<" + c);

}

} else {

if (a > c) {

System.out.println(c + "<" + a + "<" + b);

} else {

System.out.println(a + "<" + b + "<" + c);

}

}

}

}

int  a=12 ;

int  b=23 ;

int  c=3;

System.out.println(a>b);

System.out.println(a>c);

System.out.println(b>c);