初级的I/O使用.

初级的I/O使用.

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

public class IOWrite{
    @SuppressWarnings("finally")
    public static void main(String[] args) throws IOException {
        int i ;
        FileInputStream fin = null ;



        try{
            fin = new FileInputStream(args[0]);
    }catch(FileNotFoundException e){
        System.out.println("File Not Foud " + e);
        }
        try {
            do {
                i=fin.read();
                if(i != -1)System.out.print((char)i);
            } while (i != -1);
        } catch (IOException e) {
            System.out.println("I/O Error");
        }

        try{
            fin.close();
        }catch(IOException e){
            System.out.println("Closeing file Failed");
        }finally{
            fin.close();
            return ;
        }
    }
}

今天学习了如何使用Java的FileInputStream()进行文件读取.