The contains() method of java.util.concurrent.LinkedTransferQueue is an in-built function in Java which returns a true boolean value if the specified element is present in this queue otherwise it returns false.
Syntax:
LinkedTransferQueue.contains(Object o)
Parameters: The function accepts a single parameter o i.e. to be checked for the presence in this queue.
Return Value: The function returns a Boolean value. It returns True if the specified element is present in this queue else it returns False.
Below programs illustrate the LinkedTransferQueue.contains() method:
Program 1:
// Java Program Demonstrate contains()// method of LinkedTransferQueue import java.util.concurrent.*; class LinkedTransferQueueContainsExample1 { public static void main(String[] args) { // Initializing the queue LinkedTransferQueue<Integer> queue = new LinkedTransferQueue<Integer>(); // Adding elements to this queue for (int i = 10; i <= 15; i++) queue.add(i); // Checks if 9 is present in the queue if (queue.contains(9)) System.out.println("9 is present in the queue."); else System.out.println("9 is not present in the queue."); }} |
Output:
9 is not present in the queue.
Program 2:
// Java Program Demonstrate contains()// method of LinkedTransferQueue */ import java.util.concurrent.*; class LinkedTransferQueueContainsExample2 { public static void main(String[] args) { // Initializing the queue LinkedTransferQueue<String> queue = new LinkedTransferQueue<String>(); // Adding elements to this queue queue.add("Gfg"); queue.add("is"); queue.add("fun"); // Checks if Gfg is present in the queue if (queue.contains("Gfg")) System.out.println("Gfg is present in the queue."); else System.out.println("Gfg is not present in the queue."); }} |
Output:
Gfg is present in the queue.
