readfile.java

来自「Reads/writes text as a character stream,」· Java 代码 · 共 21 行

import java.io.*;

public class ReadFile{
		public static void main(String[] args) throws IOException{
			File f;
		f=new File("myfile.txt");
			if(!f.exists() && f.length()<0)
			System.out.println("The specified file is either not exist or doesn't contain data");
			else{
				FileInputStream finp=new FileInputStream(f);
			byte b;
		do{
			b=(byte)finp.read();
			System.out.print((char)b);
		}
			while(b!=-1);
				finp.close();
				}
			}
	}