java读取本地文件内容

1、要在F盘下有一个叫test的条形图格式的文件，

package test;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;

public class ReaderFile {
	
	public static void main(String[] args) throws Exception {
		
		String fileName = "F://test.txt";
		File file = new File(fileName);
		
		if( !file.exists() ){
			System.out.println("file not exist");
		}
		
		FileReader fileReader = new FileReader(file);
		BufferedReader bReader = new BufferedReader(fileReader);
		
		String tempString = null;
		while ( (tempString = bReader.readLine()) != null ) {
			System.out.println(tempString);
		}
		
		bReader.close();
		fileReader.close();
		
	}
	
}