每天进步一点点... ...

<br />package com.io;/*** 该类演示如何将异常信息放到文件当中*/import java.io.FileWriter;import java.io.IOException;import java.io.PrintWriter;import java.util.Date;public class AddTest {public static void main(String[] args) {FileWriter fw = null;Prin

"Hello World" is our first program.HelloWorld.javapublic class Hello{ public static void main(String argv[]) { System.out.println("Hello world"); }}

The static method Integer.parseInt will do the trickThere is a danger that the string does not represent a validnumber in which case an exception will be raised.There are plenty of similar routines such as:Float.parseFloat Long.parseLong Double.parse