Java PushbackInputStream mark() Example
PushbackInputStream class mark() method example. This example shows you how to use mark() method.
Syntax is : public void mark(int readlimit)
This method marks the current position in this input stream. The mark method of PushbackInputStream does nothing.
Here is the code.
/**
* @(#) MarkPushbackInputStream.java
* A class representing use of method mark() of PushbackInputStream
class in java.io Package.
* @Version 10-June-2008
* @author Rose India Team
*/
import java.io.*;
public class MarkPushbackInputStream {
public static void main(String[] args) throws IOException {
byte[] byteArray = new byte[]{'M', 'A', 'H', 'E', 'N', 'D', 'R', 'A'};
/* Create object of ByteArrayOutputStream class to write specified
byte array to the output byte stream. */
ByteArrayOutputStream objByteStream = new ByteArrayOutputStream();
objByteStream.write(byteArray, 0, 8);
// Create object of ByteArrayInputStream class.
InputStream objInStream = new ByteArrayInputStream(byteArray);
//Create object of MarkSupportedFilterInputStream class.
PushbackInputStream obj = new PushbackInputStream(objInStream);
// Read from the input stream buffer.
char firstChar = (char) obj.read();
// Set the mark position for first element.
obj.mark(1);
System.out.println("Element at first position has marked but The " +
"mark method of \nPushbackInputStream does nothing.");
System.out.print("Content of the file : " + firstChar);
for (int c = obj.read(); c != -1; c = obj.read()) {
System.out.print((char) c);
}
}
} |
output of the program.
Element at first position has marked but The mark method of
PushbackInputStream does nothing.
Content of the file : MAHENDRA |
|
