openfiletest.java

JAVA SE6 全方位学习 朱仲杰 编著 机械工业出版社出版

import java.io.*;

public class OpenFileTest
{
	public static void main(String argv[])
	{
                String fileName="";

		do
		{
	                System.out.print("Please input a file name: ");
	                InputStreamReader ir = new InputStreamReader(System.in);
	                BufferedReader br = new BufferedReader(ir);
 
	            	try {
	                    	fileName = br.readLine();
            		}
                	catch (IOException e) {
                        	System.out.println(e);
                	}
		} while ( !openFile(fileName) );

		System.out.println("Successed!");
	}

	public static boolean openFile(String fileName)
	{
		try {
			FileInputStream f = new FileInputStream(fileName);
			return true;
		}
		catch (FileNotFoundException e)
		{
			System.err.println(e.getLocalizedMessage());
			return false;
		}
	}
}