Java Program To InputStream to String Example

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Scanner;

/*
        Java InputStream to String Example
        This Java InputStream to String example shows how to convert InputStream to String in Java.
 */
public class ConvertInputStreamToStringExample {
       
        public static void main(String args[]) throws IOException{
               
                //get InputStream of a file
                InputStream is = new FileInputStream("c:/data.txt");
                String strContent;
               
                /*
                 * There are several way to convert InputStream to String. First is using
                 * BufferedReader as given below.
                 */
       
                //Create BufferedReader object
                BufferedReader bReader = new BufferedReader(new InputStreamReader(is));
                StringBuffer sbfFileContents = new StringBuffer();
                String line = null;
               
                //read file line by line
                while( (line = bReader.readLine()) != null){
                        sbfFileContents.append(line);
                }
               
                //finally convert StringBuffer object to String!
                strContent = sbfFileContents.toString();
               
                /*
                 * Second and one liner approach is to use Scanner class. This is only supported
                 * in Java 1.5 and higher version.
                 */
               
                strContent = new Scanner(is).useDelimiter("\\A").next();
        }
}