LongBuffer clear() method in Java with Examples
The clear() method of java.nio.LongBuffer Class is used to clear this buffer. While clearing this buffer following changes are done:
- the position is set to zero
- the limit is set to the capacity
- the mark is discarded.
Syntax:
public final LongBuffer clear()
Parameter: The method do not take any parameter.
Return Value: This method returns this LongBuffer instance after clearing all the data from it.
Below are the examples to illustrate the clear() method:
Examples 1:
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
try {
long [] arr = { 10 , 20 , 30 , 40 };
LongBuffer lb
= LongBuffer.wrap(arr);
lb.position( 2 );
lb.mark();
lb.position( 4 );
System.out.println( "position before reset: "
+ lb.position());
lb.clear();
System.out.println( "position after reset: "
+ lb.position());
}
catch (InvalidMarkException e) {
System.out.println( "new position is less than "
+ "the position we "
+ "marked before " );
System.out.println( "Exception throws: " + e);
}
}
}
|
Output:
position before reset: 4
position after reset: 0
Examples 2:
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
long [] arr = { 10 , 20 , 30 , 40 };
LongBuffer lb = LongBuffer.wrap(arr);
lb.position( 3 );
System.out.println( "position before clear: "
+ lb.position());
lb.clear();
System.out.println( "position after clear: "
+ lb.position());
}
}
|
Output:
position before clear: 3
position after clear: 0
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/LongBuffer.html
Last Updated :
26 Aug, 2019
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