inverse.java

来自「国外的数据结构与算法分析用书」· Java 代码 · 共 25 行

public class Inverse
{
	/**	Attempts to compute 1/a or return 0.0, otherwise. */
	public float inverse(float a)
	{
		try
		{
			float temp = 1 / a;
			if (temp == Float.POSITIVE_INFINITY)
				throw new ArithmeticException();
			return 1 / a;
		} catch (ArithmeticException e)
		{
			return 0;
		}		
	}

	public static void main(String[ ] args)
	{
		Inverse  inv = new Inverse();
		for (int i = 0; i < args.length; i++)
			System.out.println(inv.inverse(Float.parseFloat(args[i])));
	}
}