Java Collections Java Java API
Class:
java.util.PriorityQueue
Methods:
public Object[] toArray()
Returns an array containing all of the elements in this queue.
public <T> T[] toArray(T[] a)
Returns an array containing all of the elements in this queue; the runtime type of the returned array is that of the
specified array.
Examples
 package com.logicbig.example.priorityqueue;
import java.util.Arrays;
import java.util.PriorityQueue;
public class ToArrayExample {
public static void main(String... args) {
PriorityQueue<String> pq = new PriorityQueue<>();
pq.add("one");
pq.add("two");
System.out.println(pq);
Object[] objects = pq.toArray();
System.out.println(Arrays.toString(objects));
}
}
Output[one, two]
[one, two]
package com.logicbig.example.priorityqueue;
import java.util.Arrays;
import java.util.PriorityQueue;
public class ToArrayExample2 {
public static void main(String... args) {
PriorityQueue<String> pq = new PriorityQueue<>();
pq.add("one");
pq.add("two");
System.out.println(pq);
String[] strings = pq.toArray(new String[pq.size()]);
System.out.println(Arrays.toString(strings));
}
}
Output[one, two]
[one, two]
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