java语言程序设计 第十版（基础篇）6.9

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		 double foot = 1.0;
		 double meter=20.0;
		System.out.print("英尺\t米\t\t米\t英尺\n");
		System.out.println("————————————————————————————————————————");
	
		for(int i = 1;i<=10;i++) {
			System.out.printf("%2.1f\t%4.3f\t\t%3.1f\t%5.3f",foot,footToMeter(foot),meter,meterToFoot(meter));
			foot++;	
			meter+=5;		
			System.out.println();
		}
	}
	
	public static double footToMeter(double foot){
		
		double meter = 0.305 *foot;
		return meter;
	}
	
	public static double meterToFoot(double meter) {
		double foot = 3.279 * meter;
		return foot;
	}