Java ObjectInputStream readUTF() Method with Examples

by Online Tutorials Library July 22, 2022

Java ObjectInputStream readUTF() Method

The readUTF() method of ObjectInputStream class is used to read a String in UTF(Uniform Text Format) format. It returns the String which is read from objectinputstream in UTF format.

Syntax

Parameter

Returns

The String.

Throws

IOException

UTFDataFormatException

Example 1

  import java.io.*;    public class ObjectInputStreamreadUTFExample1 {     public static void main(String[] args) {        String str = “tutorAspire”;                try {           FileOutputStream outstream = new FileOutputStream(“file1.txt”);           ObjectOutputStream objoutstream = new ObjectOutputStream(outstream);           //writing content inti file.           objoutstream.writeUTF(str);            objoutstream.writeUTF(“welcome to TutorAspire “);           objoutstream.flush();           ObjectInputStream objinstream= new ObjectInputStream(new FileInputStream(“file1.txt”));           //read the first line in textfile return  in UTF format           System.out.println(“” + objinstream.readUTF());           //read the second line in textfile and return  in UTF format           System.out.println(“” + objinstream.readUTF());        } catch (Exception ex) {           ex.printStackTrace();        }     }  }  

Output:

tutorAspire  welcome to TutorAspire

Example 2

  import java.io.*;       public class ObjectInputStreamreadUTFExample2   {       public static void main(String[] args) throws IOException, ClassNotFoundException       {           FileOutputStream outStream = new FileOutputStream(“file1.txt”);           ObjectOutputStream objoutStream = new ObjectOutputStream(outStream);           ObjectInputStream objinStream  = new ObjectInputStream(new FileInputStream(“file1.txt”));           objoutStream.writeUTF(“Welcome to TutorAspire “);           objoutStream.flush();           System.out.println(“Use of readUTF() : ” + objinStream.readUTF());       }   }   

Output:

Use of readUTF() : Welcome to TutorAspire

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