//3个参数读取二进制文件 import java . io . * ; public class FileManage { public static void readBitFile ( String filename ){ //1建立目标要读取的文件对象 File file = new File ( filename ); //2基于目标对象建立输入
import java.io.*;
public class FileManage {
public static void readBitFile(String filename){
//1建立目标要读取的文件对象
File file=new File( filename );
//2基于目标对象建立输入流
InputStream in=null;
if(file.exists()){//如果文件存在,创建文件输入流
System.out.println( "文件的长度"+file.length() );
try {
in = new FileInputStream( file );//使用子类inputstream输入流
int count = 0;//读取的字节数
byte []bys=new byte[124];//临时存储读取的二进制数据
while((count=in.read(bys,0,bys.length))!=-1) {
String s=new String(bys,0,count);
System.out.print( s);
}
}catch (FileNotFoundException e){
e.printStackTrace();
}catch (IOException e){
e.printStackTrace();
}finally {
try {
in.close();
System.out.println( "关闭成功" );
}catch (IOException e){
e.printStackTrace();
}
}
}
//读取文件内容
//关闭输入流
}
}测试类
public class test93 {
public static void main(String[] args){
FileManage.readBitFile( "e:/1.txt" );
}
}
运行结果