Java-将文本分成n字节的块 [英] Java - Divide text into chunks of n-bytes
问题描述
因此,我有点困在一个程序上,在该程序中,我必须使用FileInputStream读取文本文件并将该文本分成n字节的块.我必须发出一个System.out.write();要求每个块,所以我想知道是否有一种简单的方法来做到这一点.谢谢!
So I am kinda stuck on a program where I have to read a text file, using FileInputStream and divide that text into chunks of n-bytes. I have to issue one System.out.write(); call for each chunk, so I am wondering if there is a simple way to do this. Thanks!
package test;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.*;
import java.io.*;
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
int size=0;
FileInputStream fstream = null;
Scanner console = new Scanner(System.in);
String inputFile = console.next();
System.out.println("Chunk size?");
Scanner in = new Scanner(System.in);
size = in.nextInt();
try {
fstream = new FileInputStream(inputFile);
System.out.println("Size in bytes : "
+ fstream.available());
int content;
while ((content = fstream.read()) != -1) {
//System.out.write(); for every chunk of *size* bytes
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (fstream != null)
fstream.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
推荐答案
-
使用
use
byte []个字节=新的byte [size];
byte[] bytes = new byte[size];
int byteCount;
int byteCount;
while(((byteCount = fstream.read(bytes))!= -1) ...
while((byteCount = fstream.read(bytes)) != -1) ...
您可以通过以下方式简单地创建一个字符串:
you can simply create a string this way:
新字符串(bytearray);
new String(bytearray);
PS.抱歉缺少突出显示的代码,由于某种原因无法正常工作...
PS. sry for the missing codehighlighting, didn't work properly for some reason...
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