Buffer limit() methods in Java with Examples
Last Updated :
16 Jul, 2019
The limit() method of java.nio.Buffer Class is used to set this buffer’s limit. If the position is larger than the new limit then it is set to the new limit. If the mark is defined and larger than the new limit then it is discarded.
Syntax:
public Buffer limit(int newLimit)
Return Value: This method returns this buffer.
Below are the examples to illustrate the limit() method:
Examples 1:
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
ByteBuffer byteBuffer
= ByteBuffer.allocate(4);
byteBuffer.put((byte)20);
byteBuffer.put((byte)30);
Buffer buffer = (Buffer)byteBuffer;
System.out.println("Buffer before operation: "
+ Arrays.toString(
(byte[])buffer.array())
+ "\nPosition: "
+ buffer.position()
+ "\nLimit: "
+ buffer.limit());
buffer.limit(1);
System.out.println("\nBuffer after operation: "
+ Arrays.toString(
(byte[])buffer.array())
+ "\nPosition: "
+ buffer.position()
+ "\nLimit: "
+ buffer.limit());
}
}
|
Output:
Buffer before operation: [20, 30, 0, 0]
Position: 2
Limit: 4
Buffer after operation: [20, 30, 0, 0]
Position: 1
Limit: 1
Examples 2:
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
ByteBuffer byteBuffer
= ByteBuffer.allocate(5);
byteBuffer.put((byte)20);
byteBuffer.put((byte)30);
byteBuffer.put((byte)40);
Buffer buffer = (Buffer)byteBuffer;
buffer.mark();
System.out.println("Buffer before operation: "
+ Arrays.toString(
(byte[])buffer.array())
+ "\nPosition: "
+ buffer.position()
+ "\nLimit: "
+ buffer.limit());
buffer.limit(4);
System.out.println("\nBuffer after operation: "
+ Arrays.toString(
(byte[])buffer.array())
+ "\nPosition: "
+ buffer.position()
+ "\nLimit: "
+ buffer.limit());
}
}
|
Output:
Buffer before operation: [20, 30, 40, 0, 0]
Position: 3
Limit: 5
Buffer after operation: [20, 30, 40, 0, 0]
Position: 3
Limit: 4
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/Buffer.html#limit-int-
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