Example usage for java.util PriorityQueue PriorityQueue

Introduction

In this page you can find the example usage for java.util PriorityQueue PriorityQueue.

Prototype

public PriorityQueue()

Source Link

Document

Creates a PriorityQueue with the default initial capacity (11) that orders its elements according to their Comparable natural ordering .

Usage

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    for (int i = 0; i < 10; i++) {
        prq.add(i);/* w  ww.j a v a  2 s. c o m*/
    }
    System.out.println(prq);
}

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    for (int i = 3; i < 10; i++) {
        prq.add(i);/*from  w  w  w  . j ava 2 s. c o m*/
    }

    System.out.println("Size of the queue is: " + prq.size());

    System.out.println(prq);
}

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    for (int i = 0; i < 10; i++) {
        prq.add(i);/*from   w  ww  .j av a2  s.c  o m*/
    }

    System.out.println(prq);

    prq.clear();

    System.out.println(prq);
}

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    for (int i = 0; i < 10; i++) {
        prq.add(i);/*from  w  w w.  ja  va 2 s  .  co  m*/
    }

    System.out.println(prq);

    // check if queue contains 5
    boolean b = prq.contains(5);

    System.out.println("Priority queue contains 5: " + b);
}

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    for (int i = 3; i < 10; i++) {
        prq.add(i);//from   w ww .j a v a  2 s  .co m
    }

    System.out.println(prq);

    // get the head from the queue
    Integer head = prq.peek();

    System.out.println("Head of the queue is: " + head);
}

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    for (int i = 0; i < 10; i++) {
        prq.add(i);/*from   ww w  .  ja  v  a 2s .co  m*/
    }

    System.out.println(prq);

    // add using offer() function call
    prq.offer(122);

    System.out.println(prq);
}

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    for (int i = 3; i < 10; i++) {
        prq.add(i);/*from  w  w  w .j  a  v  a2  s  .c om*/
    }

    System.out.println(prq);

    // get the head from the queue
    Integer head = prq.poll();

    System.out.println("Head of the queue is: " + head);

    System.out.println(prq);
}

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    // insert values in the queue
    for (int i = 3; i < 10; i++) {
        prq.add(i);//from  w w w.  ja va  2s. co  m
    }

    System.out.println(prq);

    // remove 7 from the queue
    boolean isremoved = prq.remove(7);

    System.out.println("Return value after remove: " + isremoved);

    System.out.println(prq);
}

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    // insert values in the queue
    prq.add(6);//from w w w  .jav a  2  s .c o m
    prq.add(9);
    prq.add(5);
    prq.add(64);
    prq.add(6);

    System.out.println(prq);

    // get objects from the queue
    Object[] arr = prq.toArray();

    for (int i = 0; i < arr.length; i++) {
        System.out.println(arr[i]);
    }
}

From source file:Main.java

public static void main(String args[]) {

    PriorityQueue<Integer> prq = new PriorityQueue<Integer>();

    // insert values in the queue
    prq.add(1);// w  ww. j  av  a2s  . c o m
    prq.add(2);
    prq.add(1);
    prq.add(64);
    prq.add(1);

    System.out.println(prq);

    // create arr1
    Integer[] arr1 = new Integer[5];

    // use toArrsy() method
    Integer[] arr2 = prq.toArray(arr1);

    for (int i = 0; i < arr1.length; i++) {
        System.out.println(arr1[i]);
    }

    for (int i = 0; i < arr2.length; i++) {
        System.out.println(arr2[i]);
    }
}