Buffer position() methods in Java with Examples Last Updated : 12 Jul, 2025 Summarize Comments Improve Suggest changes Share Like Article Like Report The position(int newPosition) method of java.nio.Buffer Class is used to set this buffer's position. If the mark is defined and larger than the new position then it is discarded. Syntax: public Buffer position(int newPosition) Parameters: This method takes the newPosition as parameter which is the new position value. It must be non-negative and no larger than the current limit. Return Value: This method returns this buffer. Below are the examples to illustrate the position() method: Examples 1: Java // Java program to demonstrate // position() method import java.nio.*; import java.util.*; public class GFG { public static void main(String[] args) { byte[] barr = { 10, 20, 30, 40 }; // creating object of ByteBuffer // and allocating size capacity ByteBuffer bb = ByteBuffer.wrap(barr); // Typecasting ByteBuffer into Buffer Buffer bb1 = (Buffer)bb; // try to set the position at index 2 // using position() method bb1.position(2); // Set this buffer mark position bb1.mark(); // try to set the position at index 4 // using position() method bb1.position(4); // display position System.out.println("position before reset: " + bb.position()); // try to call reset() to restore // to the position we marked bb1.reset(); // display position System.out.println("position after reset: " + bb1.position()); } } Output: position before reset: 4 position after reset: 2 Examples 2: Java // Java program to demonstrate // position() method import java.nio.*; import java.util.*; public class GFG { public static void main(String[] args) { // creating object of ByteBuffer // and allocating size capacity ByteBuffer bb = ByteBuffer.allocate(4); // Typecasting ByteBuffer into Buffer Buffer bb1 = (Buffer)bb; // try to set the position at index 1 // using position() method bb1.position(3); // display position System.out.println("position before clear: " + bb1.position()); // try to clear the Buffer // using clear() method bb1.clear(); // display position System.out.println("position after clear: " + bb1.position()); } } Output: position before clear: 3 position after clear: 0 Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/Buffer.htmlposition-int- Comment More infoAdvertise with us Next Article Buffer reset() methods in Java with Examples R rohitprasad3 Follow Improve Article Tags : Java Java-Functions Java-NIO package Java-Buffer Practice Tags : Java Similar Reads CharBuffer position() methods in Java with Examples The position(int newPosition) method of java.nio.CharBuffer Class is used to set this buffer's position. If the mark is defined and larger than the new position then it is discarded. Syntax: public CharBuffer position(int newPosition) Parameters: This method takes the newPosition as parameter which 2 min read ByteBuffer position() methods in Java with Examples The position(int newPosition) method of java.nio.ByteBuffer Class is used to Sets this buffer's position. If the mark is defined and larger than the new position then it is discarded. Syntax: public ByteBuffer position(int newPosition) Parameters: This method takes the newPosition as parameter which 2 min read Buffer reset() methods in Java with Examples The reset() method of java.nio.Buffer Class is used to reset this buffer's position to the previously-marked position. Invoking this method neither changes nor discards the mark's value.Syntax: public Buffer reset() Return Value: This method returns this buffer.Below are the examples to illustrate t 2 min read Buffer rewind() methods in Java with Examples The rewind() method of java.nio.ByteBuffer Class is used to rewind this buffer. The position is set to zero and the mark is discarded. Invoke this method before a sequence of channel-write or get operations, assuming that the limit has already been set appropriately. Invoking this method neither cha 2 min read ByteBuffer putInt() methods in Java with Examples putInt(int value) The putInt(int value) method of java.nio.ByteBuffer Class is used to write four bytes containing the given int value, in the current byte order, into this buffer at the current position, and then increments the position by four. Syntax : public abstract ByteBuffer putInt(int value) 6 min read Buffer remaining() methods in Java with Examples The remaining() method of java.nio.Buffer Class is used to return the number of elements between the current position and the limit. Syntax: public final int remaining() Return Value: This method returns the number of elements remaining in this buffer. Below are the examples to illustrate the remain 2 min read Like