用JAVA编写程序:由键盘输入三个整数分别存入变量num1、num2、num3，对它们进行序(使用if- else if-else),并且从小到大输出。作业下周三之前交

以下是用JAVA编写的程序，可以实现输入三个整数并按照从小到大的顺序输出：

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int num1 = input.nextInt();
        int num2 = input.nextInt();
        int num3 = input.nextInt();
        if (num1 <= num2 && num1 <= num3) {
            if (num2 <= num3) {
                System.out.println(num1 + " " + num2 + " " + num3);
            } else {
                System.out.println(num1 + " " + num3 + " " + num2);
            }
        } else if (num2 <= num1 && num2 <= num3) {
            if (num1 <= num3) {
                System.out.println(num2 + " " + num1 + " " + num3);
            } else {
                System.out.println(num2 + " " + num3 + " " + num1);
            }
        } else {
            if (num1 <= num2) {
                System.out.println(num3 + " " + num1 + " " + num2);
            } else {
                System.out.println(num3 + " " + num2 + " " + num1);
            }
        }
    }
}

希望能对您有所帮助。