java list sort comparator date descending lambda
Comparator sortingByName =
(Student s1, Student s2)->s1.getName().compareTo(s2.getName());java list sort comparator date descending lambda
Comparator sortingByName =
(Student s1, Student s2)->s1.getName().compareTo(s2.getName());java list sort comparator date descending lambda
import java.util.ArrayList;
import java.util.List;
class Student {
String name;
int age;
int id;
public String getName() {
return name;
}
public int getAge() {
return age;
}
public int getId() {
return id;
}
Student(String n, int a, int i){
name = n;
age = a;
id = i;
}
@Override public String toString() {
return ("Student[ "+"Name:"+this.getName()+
" Age: "+ this.getAge() +
" Id: "+ this.getId()+"]");
}
}
public class Example {
public static void main(String[] args) {
List<Student> studentlist = new ArrayList<Student>();
studentlist.add(new Student("Jon", 22, 1001));
studentlist.add(new Student("Steve", 19, 1003));
studentlist.add(new Student("Kevin", 23, 1005));
studentlist.add(new Student("Ron", 20, 1010));
studentlist.add(new Student("Lucy", 18, 1111));
System.out.println("Before Sorting the student data:");
//java 8 forEach for printing the list
studentlist.forEach((s)->System.out.println(s));
System.out.println("After Sorting the student data by Age:");
//Lambda expression for sorting by age
studentlist.sort((Student s1, Student s2)->s1.getAge()-s2.getAge());
//java 8 forEach for printing the list
studentlist.forEach((s)->System.out.println(s));
System.out.println("After Sorting the student data by Name:");
//Lambda expression for sorting the list by student name
studentlist.sort((Student s1, Student s2)->s1.getName().compareTo(s2.getName()));
studentlist.forEach((s)->System.out.println(s));
System.out.println("After Sorting the student data by Id:");
//Lambda expression for sorting the list by student id
studentlist.sort((Student s1, Student s2)->s1.getId()-s2.getId());
studentlist.forEach((s)->System.out.println(s));
}
}java list sort comparator date descending lambda
myActionsDashboardDtoList.sort (Collections.reverseOrder(Comparator.comparing (MyActionsDashboardDto::getDateIn)));Copyright © 2021 Codeinu
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