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Author Question: What is the output of the following code?import java.util.*;public class Test { public static void ... (Read 607 times)

armygirl

  • Hero Member
  • *****
  • Posts: 556
on: May 6, 2020
What is the output of the following code?

import java.util.*;

public class Test {
public static void main(String[] args) {
​ArrayList list = new ArrayList<>();
​list.add(new Student("Peter", 65));
​list.add(new Student("Jill", 50));
​list.add(new Student("Sarah", 34));
​Collections.sort(list);
​System.out.print(list + " ");
​Collections.sort(list, new StudentComparator1());
​System.out.println(list);
}
 
static class StudentComparator1 implements Comparator {
​public int compare(Student s1, Student s2) {
​return s1.name.compareTo(s2.name);
​}
}
 
static class Student implements Comparable {
​String name;
​int age;
​Student(String name, int age) {
​this.name = name;
​this.age = age;
​}

​public int compareTo(Student s) {
​return this.age - s.age;
​}

​public String toString() {
​return "[" + name + ", " + age + "]";
​}
}
}

◦ [[Jill, 50], [Peter, 65], [Sarah, 34]] [[Jill, 50], [Peter, 65], [Sarah, 34]]
◦ [[Sarah, 34], [Jill, 50], [Peter, 65]] [[Jill, 50], [Peter, 65], [Sarah, 34]]
◦ [[Sarah, 34], [Jill, 50], [Peter, 65]] [[Sarah, 34], [Jill, 50], [Peter, 65]]
◦ [[Jill, 50], [Peter, 65], [Sarah, 34]] [[Sarah, 34], [Jill, 50], [Peter, 65]]
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Marked as best answer by armygirl on May 6, 2020

makaylafy

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  • Posts: 347
Reply #1 on: May 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Anthony Gonzalez

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  • Posts: 1
Reply #2 on: Dec 16, 2020
Thank you


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