DataInputStream.readUTF() has the following syntax.
public final String readUTF() throws IOException
In the following code shows how to use DataInputStream.readUTF() method.
/*ww w .j a v a 2 s . c o m*/ import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; public class Main { public static void main(String[] args) throws IOException { String[] s = { "Hello", "tutorial from java2s.com!!" }; FileOutputStream fos = new FileOutputStream("c:\\test.txt"); DataOutputStream dos = new DataOutputStream(fos); for (String j : s) { dos.writeUTF(j); } dos.flush(); InputStream is = new FileInputStream("c:\\test.txt"); DataInputStream dis = new DataInputStream(is); while (dis.available() > 0) { String k = dis.readUTF(); System.out.print(k); } } }