bufferedinputfile.java

来自「这是Java思想的最高集萃」· Java 代码 · 共 35 行

package chapter18;
import java.io.*;
public class BufferedInputFile {
	public static String read(String filename) throws IOException{
		BufferedReader in=new BufferedReader(new FileReader(filename));
		/*
		 * BufferedReader是一个构造器，提供readLine()方法
		 */
		String s;
		StringBuilder sb=new StringBuilder();
		/*
		 * StringBuilder是将形成字符串的类
		 */
		while((s=in.readLine())!=null){
			sb.append(s+"\n");
		}
		in.close();
		return sb.toString();
		
	}
	
	public static void main(String args[])throws IOException{
		System.out.print(read("File/test1.txt"));
		/*
		 * 这是很关键，File必须在工程名下
		 */
		System.out.print(read("test2.txt"));
		/*
		 * 这是很关键，test2.txt必须在工程名下
		 */
		
//		System.out.print(read("D:\\Homework\\PreviousHomework\\大一\\英语展示\\ENGLISH PLAY.txt"));
	}
}