Buffer hasRemaining() methods in Java with Examples Last Updated : 22 Oct, 2022 Comments Improve Suggest changes Like Article Like Report The hasRemaining() method of java.nio.Buffer class is used to tell whether there are any elements between the current position and the limit. Syntax: public final boolean hasRemaining() Returns: This method will return true if, and only if, there is at least one element remaining in this buffer. Below are the examples to illustrate the hasRemaining() method: Example 1: Java // Java program to demonstrate // hasRemaining() method import java.nio.*; import java.util.*; public class GFG { public static void main(String[] args) { // Declaring the capacity of the ByteBuffer int capacity = 10; // creating object of bytebuffer // and allocating size capacity ByteBuffer bb = ByteBuffer.allocate(capacity); // putting the value in bytebuffer bb.put((byte)10); bb.put((byte)20); bb.rewind(); // Typecast bytebuffer to Buffer Buffer buffer = (Buffer)bb; // checking if, there is at least one element // remaining in this buffer. boolean isRemain = buffer.hasRemaining(); // checking if else condition if (isRemain) System.out.println("there is at least one " + "element remaining " + "in this buffer"); else System.out.println("there is no " + "element remaining " + "in this buffer"); } } Output:there is at least one element remaining in this buffer Example 2: Java // Java program to demonstrate // hasRemaining() method import java.nio.*; import java.util.*; public class GFG { public static void main(String[] args) { // Declaring the capacity of the ByteBuffer int capacity = 0; // creating object of bytebuffer // and allocating size capacity ByteBuffer bb = ByteBuffer.allocate(capacity); // Typecast bytebuffer to Buffer Buffer buffer = (Buffer)bb; // checking buffer is backed by array or not boolean isRemain = buffer.hasRemaining(); // checking if else condition if (isRemain) System.out.println("there is at least one " + "element remaining" + " in this buffer"); else System.out.println("there is no " + "element remaining" + " in this buffer"); } } Output:there is no element remaining in this buffer Comment More infoAdvertise with us Next Article Buffer hasRemaining() methods in Java with Examples rohitprasad3 Follow Improve Article Tags : Java Java-Functions Java-NIO package Java-Buffer Practice Tags : Java Similar Reads Buffer flip() methods in Java with Examples The flip() method of java.nio.ByteBuffer Class is used to flip this buffer. 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