[Java]_ch13.2_二進制檔讀取與寫入

[Java]_ch13.2_二進制檔讀取與寫入

package YPU;



import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;



public class A13_1 {



public static void main(String[] args) throws IOException {

FileInputStream fis;

try {

fis=new FileInputStream("C:\\Gjun135\\C20181109.txt");

} catch (FileNotFoundException e) {

fis=new FileInputStream("C:\\CCTU135\\C20181109.txt");

}

int num=fis.available();

byte data[]=new byte[num];

fis.read(data);

System.out.print("總共讀取:"+num+"字元\n");

for(int i=0;i<data.length;i++){

System.out.print(data[i]);

}

String s1=new String(data);

System.out.println("\ns1.length="+s1.length()+"\n"+s1);

}

}