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如何使用If语句对数字进行排序(Java)

我知道您可以使用数组轻松地对数字进行排序,但我的类分配是我需要使用if语句不是数组按降序对四个数字进行排序.

到目前为止,这是我的代码:

package integersort;

import java.util.Scanner;

public class IntegerSort {

public static void main(String[] args) {
    Scanner userInput = new Scanner(System.in);

    int firstNum, secondNum, thirdNum, fourthNum; //inputted numbers

    System.out.println("Enter first number:");
    firstNum = userInput.nextInt();
    System.out.println("Enter second number:");
    secondNum = userInput.nextInt();
    System.out.println("Enter third number:");
    thirdNum = userInput.nextInt();
    System.out.println("Enter fourth number:");
    fourthNum = userInput.nextInt();


    int firstPlace = 0, secondPlace = 0, thirdPlace = 0, fourthPlace = 0;

    //firstPlace start
    if (firstNum > secondNum && firstNum > thirdNum && …
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java sorting if-statement

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