Build priority queue

import java.util.Arrays;

public class PriorityQueue {
  private int[] items = new int[5];
  private int count;

  // O(n)
  public void add(int item) {
    if (isFull())
      throw new IllegalStateException();

    var i = shiftItemsToInsert(item);
    items[i] = item;
    count++;
  }

  public boolean isFull() {
    return count == items.length;
  }

  private int shiftItemsToInsert(int item) {
    int i;
    for (i = count - 1; i >= 0; i--) {
      if (items[i] > item)
        items[i + 1] = items[i];
      else
        break;
    }
    return i + 1;
  }

  // O(1)
  public int remove() {
    if (isEmpty())
      throw new IllegalStateException();

    return items[--count];
  }

  public boolean isEmpty() {
    return count == 0;
  }

  @Override
  public String toString() {
    return Arrays.toString(items);
  }
}

Similar codes

3 votes130 views5 answers
String to int array java
Java
0 vote100 views1 answer
Conexion a mysql java
Java
1 vote103 views1 answer
Spring xml file configuration
Java
3 votes143 views2 answers
Uninstall java ac
Java
0 vote107 views1 answer
Skip values in a for loop java
Java
0 vote121 views1 answer
How to make edittext not editable in android studio
Java
1 vote113 views1 answer
How to generate a random number in libgdx
Java
5 votes106 views2 answers
Explain JDK, JRE and JVM?
Java
0 vote108 views1 answer
Java new.JFrame();
Java
4 votes117 views3 answers
Android Dialog
Java