load contents of file into string java
package test; import java.io.BufferedReader; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.nio.charset.StandardCharsets; import java.nio.file.Files; import java.nio.file.Paths; /** * Java Program to demonstrate different ways to loop over collection in * pre Java 8 and Java 8 world using Stream's forEach method. * @author Javin Paul */ public class FileToStringJava8 { public static void main(String args[]) throws IOException { // How to read file into String before Java 7 InputStream is = new FileInputStream("manifest.mf"); BufferedReader buf = new BufferedReader(new InputStreamReader(is)); String line = buf.readLine(); StringBuilder sb = new StringBuilder(); while(line != null){ sb.append(line).append("\n"); line = buf.readLine(); } String fileAsString = sb.toString(); System.out.println("Contents (before Java 7) : " + fileAsString); // Reading file into Stirng in one line in JDK 7 String contents = new String(Files.readAllBytes(Paths.get("manifest.mf"))); System.out.println("Contents (Java 7) : " + contents); // Reading file into String using proper character encoding String fileString = new String(Files.readAllBytes(Paths.get("manifest.mf")), StandardCharsets.UTF_8); System.out.println("Contents (Java 7 with character encoding ) : " + fileString); // It's even easier in Java 8 Files.lines(Paths.get("manifest.mf"), StandardCharsets.UTF_8).forEach(System.out::println); } }