DoubleBuffer mark() methods in Java with Examples Last Updated : 29 Jul, 2019 Summarize Comments Improve Suggest changes Share Like Article Like Report The mark() method of java.nio.DoubleBuffer Class is used to mark the current position of this DoubleBuffer as the mark of this buffer. Syntax: public DoubleBuffer mark() Return Value: This method returns this DoubleBuffer after setting the buffer's mark at the current position. Below are the examples to illustrate the mark() method: Examples 1: Java // Java program to demonstrate // mark() method import java.nio.*; import java.util.*; public class GFG { public static void main(String[] args) { try { double[] darr = { 10.5, 20.5, 30.5, 40.5 }; // creating object of DoubleBuffer // and allocating size capacity DoubleBuffer db = DoubleBuffer.wrap(darr); // try to set the position at index 2 db.position(2); // Set this buffer mark position // using mark() method db.mark(); // try to set the position at index 4 db.position(4); // display position System.out.println("position before reset: " + db.position()); // try to call reset() to restore // to the position we marked db.reset(); // display position System.out.println("position after reset: " + db.position()); } catch (InvalidMarkException e) { System.out.println("New position " + "is less than " + "the position " + "marked before "); System.out.println("Exception throws: " + e); } } } Output: position before reset: 4 position after reset: 2 Examples 2: To demonstrate InvalidMarkException Java // Java program to demonstrate // mark() method import java.nio.*; import java.util.*; public class GFG { public static void main(String[] args) { try { double[] darr = { 10.5, 20.5, 30.5, 40.5 }; // creating object of DoubleBuffer // and allocating size capacity DoubleBuffer db = DoubleBuffer.wrap(darr); // try to set the position at index 2 db.position(2); // Set this buffer mark position // using mark() method db.mark(); // try to set the position at index 1 db.position(1); // display position System.out.println("position before reset: " + db.position()); // try to call reset() to restore // to the position we marked db.reset(); // display position System.out.println("position after reset: " + db.position()); } catch (InvalidMarkException e) { System.out.println("\nNew position " + "is less than " + "the position " + "marked before "); System.out.println("Exception throws: " + e); } } } Output: position before reset: 1 New position is less than the position marked before Exception throws: java.nio.InvalidMarkException Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/DoubleBuffer.html#mark-- Comment More infoAdvertise with us Next Article DoubleBuffer limit() methods in Java with Examples R rohitprasad3 Follow Improve Article Tags : Java Java-Functions Java-NIO package Java-DoubleBuffer Practice Tags : Java Similar Reads ByteBuffer mark() methods in Java with Examples The mark() method of java.nio.ByteBuffer Class is used to set this buffer's mark at its position. Syntax: public ByteBuffer mark() Return Value: This method returns this buffer. Below are the examples to illustrate the mark() method: Examples 1: Java // Java program to demonstrate // mark() method i 2 min read Buffer mark() methods in Java with Examples The mark() method of java.nio.Buffer Class is used to set this buffer's mark at its position.Syntax: public Buffer mark() Return Value: This method returns this buffer.Below are the examples to illustrate the mark() method:Examples 1: Java // Java program to demonstrate // mark() method import java. 2 min read DoubleBuffer limit() methods in Java with Examples The limit() method of java.nio.DoubleBuffer Class is used to modify this DoubleBuffer's limit. This method takes the limit to be set as the parameter and sets that as the new limit of this Buffer. If the mark of this Buffer is already defined and is larger than the new specified limit, then this new 2 min read DoubleBuffer get() methods in Java with Examples The get() method of java.nio.DoubleBuffer Class is used to reads the double at the given buffer’s current position, and then increments the position. Syntax: public abstract double get() Return Value: This method returns the double value at the buffer’s current position. Exception: This method throw 3 min read CharBuffer mark() methods in Java with Examples The mark() method of java.nio.CharBuffer Class is used to set this buffer's mark at its position. Syntax: public CharBuffer mark() Return Value: This method returns this buffer. Below are the examples to illustrate the mark() method: Examples 1: Java // Java program to demonstrate // mark() method i 2 min read DoubleBuffer flip() methods in Java with Examples The flip() method of java.nio.DoubleBuffer Class is used to flip this buffer. By flipping this buffer, it meant that the buffer will be trimmed to the current position and then the position will be changed to zero. During this process, if any mark is there on the buffer, then that mark will be autom 2 min read Like