Java sort list by attribute

Sort list of objects by attribute java

ArrayList<Employee> employees = getUnsortedEmployeeList();
             
Comparator<Employee> compareById = (Employee o1, Employee o2) -> o1.getId().compareTo( o2.getId() );
 
Collections.sort(employees, compareById);
 
Collections.sort(employees, compareById.reversed());

Collections.sort custom comparator

ArrayList<Employee> employees = getUnsortedEmployeeList();
             
Comparator<Employee> compareById = (Employee o1, Employee o2) -> o1.getId().compareTo( o2.getId() );
 
Collections.sort(employees, compareById);
 
Collections.sort(employees, compareById.reversed());

Source: howtodoinjava.com

Java sort list by attribute

       List.sort((a, b) -> {
                if (a.value() > b.value()) {
                    return -1;
                }
                if (a.value() < b.value()) {
                    return 1;
                }
                return 0;
            });

Similar codes

1 vote101 views1 answer
Why do we use fragments in react?
TypeScript
0 vote102 views1 answer
Open rails secrets file
TypeScript
0 vote115 views1 answer
Why are inline scripts not working anymore on HTML
TypeScript
6 votes101 views1 answer
Comments pycharm
TypeScript
38 votes119 views10 answers
Calculator
TypeScript
0 vote104 views1 answer
Too many requests jquery laravel
TypeScript
2 votes112 views1 answer
How to get post of instragram using api
TypeScript
20 votes106 views2 answers
Install ng bootstrap
TypeScript
32 votes113 views6 answers
Bootstrap alerts
TypeScript
6 votes125 views4 answers
Data
TypeScript