Java File Content Read getFileContent(File file)

Description

get File Content

License

Open Source License

Declaration

private static String getFileContent(File file) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.*;

public class Main {

    private static String getFileContent(File file) throws IOException {

        byte[] b = new byte[28];

        InputStream inputStream = null;

        try {//from   w  w w.  j a  v a2 s .co  m
            inputStream = new FileInputStream(file);
            inputStream.read(b, 0, 28);
        } catch (IOException e) {
            e.printStackTrace();
            throw e;
        } finally {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                    throw e;
                }
            }
        }
        return bytesToHexString(b);
    }

    private static String bytesToHexString(byte[] src) {

        StringBuilder stringBuilder = new StringBuilder();
        if (src == null || src.length <= 0) {
            return null;
        }
        for (int i = 0; i < src.length; i++) {
            int v = src[i] & 0xFF;
            String hv = Integer.toHexString(v);
            if (hv.length() < 2) {
                stringBuilder.append(0);
            }
            stringBuilder.append(hv);
        }
        return stringBuilder.toString();
    }
}

Related

1. getFileContent(File f)
2. getFileContent(File f)
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