// Use a GreaterString function object for comparing elements. This will
// order strings in ascending order.
PriorityQueue queue = new PriorityQueue( new GreaterString() );
queue.push( "cat" );
queue.push( "dog" );
queue.push( "ape" );
queue.push( "bat" );
queue.push( "fox" );
queue.push( "emu" );
System.out.println( "Pop and print each element." );
while ( !queue.isEmpty() )
System.out.print( queue.pop() + " ");
System.out.println();
