Click here to watch in Youtube : https://www.youtube.com/watch?v=OeL1GLYw8-M&list=UUhwKlOVR041tngjerWxVccwDataOutputStreamDemo.javaimport java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class DataOutputStreamDemo
{
public static void main(String[] args) throws Exception
{
DataOutputStreamDemo dataOutputStreamDemo = new DataOutputStreamDemo();
dataOutputStreamDemo.writePrimitiveData();
}
public void writePrimitiveData() throws IOException
{
DataOutputStream dataOutputStream = null;
FileOutputStream fileOutputStream = null;
try
{
fileOutputStream = new FileOutputStream("data.txt");
dataOutputStream = new DataOutputStream(fileOutputStream);
int[] intArray = { 100, 250, 440, 550, 900 };
for (int j : intArray)
{
dataOutputStream.writeInt(j);
}
System.out.println("Successfully written to \'data.txt\' file\n");
}
finally
{
if (dataOutputStream != null)
{
/*
* Closing a DataOutputStream will also
* close the OutputStream instance to which
* the DataOutputStream is writing.
*/
dataOutputStream.close();
}
}
}
}
OutputSuccessfully written to 'data.txt' file
data.txtDataInputStreamDemo.javaimport java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.IOException;
public class DataInputStreamDemo
{
public static void main(String[] args) throws Exception
{
DataInputStreamDemo dataInputStreamDemo = new DataInputStreamDemo();
dataInputStreamDemo.readPrimitiveData();
}
public void readPrimitiveData() throws IOException
{
FileInputStream fileInputStream = null;
DataInputStream dataInputStream = null;
try
{
fileInputStream = new FileInputStream("data.txt");
dataInputStream = new DataInputStream(fileInputStream);
while (dataInputStream.available() > 0)
{
int intValue = dataInputStream.readInt();
System.out.println(intValue);
}
}
finally
{
if (dataInputStream != null)
{
/*
* Closing a DataInputStream will also close
* the InputStream instance from which the
* DataInputStream is reading.
*/
dataInputStream.close();
}
}
}
}
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