Java语言程序设计 例题6.5（将三个数排序）

*6.5 (Sort three numbers) Write a method with the following header to display three numbers in increasing order:public static void displaySortedNumbers(double num1, double num2, double num3)Write a test program that prompts the user to enter three numbers and invokes the method to display them in increasing order.

*6.5（对三个数字进行排序）编写一个具有以下标题的方法，以递增顺序显示三个数字：public static void DisplaySortedNumber（double num1、double num2、double num3）编写一个测试程序，提示用户输入三个数字，并调用该方法以递增顺序显示它们。

代码如下：

import java.util.Scanner;
public class Unite6Test5 
{
	public static void main(String[] args) 
	{
		Scanner input = new Scanner(System.in);
		System.out.println("请输入三个数：");
		double num1 = input.nextDouble();
		double num2 = input.nextDouble();
		double num3 = input.nextDouble();
		System.out.println("结果为：");
		DisplaySortedNumber(num1, num2, num3);
	}
	public static void DisplaySortedNumber(double num1,double num2,double num3 ) 
	{
		if(num1 > num2) 
		{
			if(num2 > num3) 
			{
				System.out.println(num3+" "+num2+" "+num1);
			}else if(num3>num1) 
			{
				System.out.println(num2+" "+num1+" "+num3);
			}else 
			{
				System.out.println(num2+" "+num3+" "+num1);
			}
		}else if(num2 > num3) 
		{
			if (num3 > num1) 
			{
				System.out.println(num1+" "+num3+" "+num2);
			}else 
			{
				System.out.println(num3+" "+num1+" "+num2);
			}
		}else 
		{
			System.out.println(num1+" "+num2+" "+num3);
		}
	}
}

结果如下：