file read to String - Java File Path IO

Java examples for File Path IO:Text File

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Description

file read to String

Demo Code


//package com.java2s;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] argv) throws Exception {
        String filePath = "java2s.com";
        System.out.println(file_read(filePath));
    }/*from  w  w  w. j a  v a  2  s .c  om*/

    public static String file_read(String filePath) {
        try {
            FileInputStream fin = new FileInputStream(new File(filePath));
            String ret = convertStreamToString(fin);
            fin.close();
            return ret;
        } catch (Exception e) {
            return "";
        }
    }

    public static String convertStreamToString(InputStream is)
            throws Exception {
        BufferedReader reader = new BufferedReader(
                new InputStreamReader(is));
        StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
            sb.append(line).append("\n");
        }
        reader.close();
        return sb.toString();
    }
}

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