enter image description here How i can sort array of node class according to marks value

enter image description here

CodePudding user response：

You have few ways to do that. Here are the 2 that came to my mind:

1. When defining your Node class, implements the Comparator interface as follows:

    @Getter
    @Setter
    @ToString
    @AllArgsConstructor
    public class Node implements Comparable<Node> {
        private int marks;
        private int index;

        @Override
        public int compareTo(Node o) {
            return Integer.compare(this.marks, o.marks);
        }
    }

Then when you use the Arrays.sort(yourNodeArray), then the array yourNodeArray is sorted by the marks.

2. Another method is to use streams:

Node[] yourSortedNodeArray =  Arrays.stream(yourNodeArray).sorted(Comparator.comparing(Node::getMarks)).toArray(Node[]::new);

With the first way, you will always sort by the marks, the second way, you can sort by anything you want.

CodePudding user response：

Please understand how to ask questions properly according to the StackOverFlow Rules and always let other know what you did and what challenges are you facing? This time I am not down voting your question but from next time please keep that in mind. Go through this to unserstanc about how to ask proper questions https://www.wikihow.com/Ask-a-Question-on-Stack-Overflow

Share the question link and your solution as well.So that I can have a look.