the problem is that while(!arrCopy.isEmpty()) does not seem to be executing and the queue is empty. i wrote a new method that creates a queue, and every time it removes and returns an integer from the stack using pop, it will add it onto the queue. So, i have a stack with 10 integers and i'd like to print it in reverse. Si te gusta GeeksforGeeks y te gustarÃa contribuir, también puedes escribir un artÃculo usando o enviar tu artÃculo por correo a Vea su artÃculo que aparece en la página principal de GeeksforGeeks y ayude a otros ((int)arrCopy.remove() + ", ") La clave aquà para recordar es que el programa anterior utiliza operaciones no controladas e inseguras.Ä®ste artÃculo es una contribución de Mohit Gupta. Printing sorted students in descending order = Collections.reverseOrder(new Sortbyroll()) Sorting a list of students in descending order of Display message for better readability You can even use Collections.reverseOrder() if you want to sort an array in the decreasing order, which returns a reverse Comparator to sort objects in the. The Collections. On this page we will provide java Collections reverseOrder () and reverse () example. However, we can create the TreeMap in reverse order using Collections.reverseOrder() method in Java and display the elements in descending order of keys. Adding custom attributes defined in Student classĪr.add(new Student(111, "bbbb", "london")) Īr.add(new Student(121, "cccc", "jaipur")) By default TreeMap elements in Java are sorted in ascending order of keys. Used for sorting in ascending order of Return this.rollno + " " + this.name + " " To print student details inside main() method This keyword refers to current instance itself Public Student(int rollno, String name, String address) when there is a user defined comparator to do reverse To sort students in descending order of roll numbers Java Program to Demonstrate Working of
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