tempconvert.java

来自「JAVA程序—闰年的验证」· Java 代码 · 共 42 行

class TempConvert
{
	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[])
	{
		if(args.length<2)
		{
			System.out.println("用法：TempConvert 温度 c|f");
			return;
			}
		temp=new Double(args[0]).doubleValue();
		switch(args[1].charAt(0))
		{
			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);	
		}
		
	}