timmyBeef

class Solution {
    class Step {
        int x;
        int y;
        int level;
        Step(int x, int y) {
            this.x = x;
            this.y = y;
        }
        Step(int x, int y, int level) {

timmyBeef

public Enum Operation {
	PLUS ("+", (x, y) -> x + y)
....
}

timmyBeef

List<String> words = List.of("tim", "beef", "lin");

Collections.sort(words, new Comparator<>() {
    @Override
    public int compare(String s1, String s2) {
        return Integer.compare(s1.length(), s2.length()) ;
    }
}) ;

timmyBeef

<div *ngFor="let item of qaList;let qIndex= index;trackBy:customQTrackBy">
      <div class="card">
        <div class="card-header bg-info text-white h5">
          Q{{(qIndex+1) + '. ' + item.question.questionContent}}
        </div>
        <div class="row input-group">
           <textarea class="form-control" rows=2 name="questions-{{qIndex}}" [(ngModel)]="item.question.questionContent"
           #editQ="ngModel" required></textarea>
        .........
        ......

timmyBeef

    this.qaList = [{
      question: <QuestionDto> { questionContent: 'Do you have any hobbies?', questionOrder: 0, isDefaut: true },
      answers:  [
        <AnswerDto> { answerContent: 'I like to swim.', isDefaut: true},
        <AnswerDto> { answerContent: 'I like to play basketball.', isDefaut: false},
        <AnswerDto> { answerContent: 'I like to play badminton.', isDefaut: false}
      ]
    }];