Java ObjectInputStream readByte() Method with Examples

by Online Tutorials Library July 22, 2022

Java ObjectInputStream readByte() Method

The readByte() method of Java ObjectInputStream class is used to read an 8-bit byte.

Syntax

Parameter

No parameter is passed.

Returns

The 8-bit byte read.

Throws

EOFException – If the end of file is reached.

IOException – If other I/O error has occurred.

Example 1

  import java.io.ByteArrayInputStream;  import java.io.DataInputStream;  import java.io.IOException;  import java.io.InputStream;    public class ObjectInputStreamreadByteExample1 {     public static void main(String[] args) throws IOException {        InputStream instream = null;        DataInputStream datainsstream = null;        byte[] buff = {65, 0, 0, 68, 69};                try {           // create new byte array input stream           instream = new ByteArrayInputStream(buff);                      // create data input stream           datainsstream = new DataInputStream(instream);                      // readBoolean till the data available to read           while( datainsstream.available() >0) {                         // read one single byte              byte bt = datainsstream.readByte();                            // print the byte              System.out.print(bt+” “);           }                   } catch(Exception e) {           // if any I/O error occurs           e.printStackTrace();        }     }  }  

Test it Now

Output:

65 0 0 68 69

Example 2

  import java.io.ByteArrayInputStream;  import java.io.DataInputStream;  import java.io.IOException;  import java.io.InputStream;  public class ObjectInputStreamreadByteExample2 {        public static void main(String[] args) throws IOException {        InputStream instream = null;        DataInputStream datainsstream = null;        byte[] barray = {‘j’, ‘a’, ‘v’, ‘a’, ‘T’, ‘p’, ‘o’, ‘i’, ‘n’, ‘t’};                try {           // create new byte array input stream           instream = new ByteArrayInputStream(barray);                      // create data input stream           datainsstream = new DataInputStream(instream);                      // readBoolean till the data available to read           for(int i=0;i<=barray.length;i++){          // while( datainsstream.available() >0) {                         // read one single byte              byte bt = datainsstream.readByte();                            // print the byte              System.out.print(bt+” “);           }                   } catch(Exception e) {           // if any I/O error occurs                  }     }  }  

Test it Now

Output:

106 97 118 97 84 112 111 105 110 116

Next TopicJava ObjectInputStream

available()close()defaultReadObject()java objectinputstream read()readBoolean()readChar()readClassDescriptor()readFloat()readLong()readshort()