tempconvert2.java

来自「JAVA程序—闰年的验证」· Java 代码 · 共 50 行

import java.io.*;

class TempConvert2
{
	private static double temp;
	private static double scale;
	
	static double cToF(double degrees)
	{
		return 9*degrees/5+32;
		}
		
	static double fToC(double degrees)
	{
		return 5*(degrees-32)/9;
		}
		
	public static void main(String args[])
	{
		try
		{
		  DataInputStream con=new DataInputStream(System.in);
		  System.out.println("输入待转换的数：");
		  String str1=con.readLine();
		  temp=new Double(str1).doubleValue();
          System.out.println("转换方式C/F：");		
	      String str2=con.readLine();
		  char str3=str2.charAt(0);
         
		  switch(str3)
		{
			case 'c':
			case 'C': temp=cToF(temp);
			          break;
			case 'f': 
			case 'F': temp=fToC(temp);
			          break;
			default: 
			     System.out.println("参数非法。");
			     return;
			}
		  
		  System.out.println("结果为："+temp);	
		 }
        catch(Exception e)
        {}
		}
		
	}