import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class Tester {
public static void main(String[] args) {
List<Employee> employees = new ArrayList<>();
employees.add(new Employee(1, 20, "A"));
employees.add(new Employee(4, 26, "D"));
employees.add(new Employee(2, 23, "C"));
employees.add(new Employee(3, 25, "B"));
employees.add(new Employee(5, 24, "E"));
//Unordered list
System.out.println("Unsorted List");
System.out.println(employees);
//Sorted by natural order on employee name,
//as provide by compareTo method
Collections.sort(employees);
//Ordered list
System.out.println("Sorted List on Name");
System.out.println(employees);
//Sorted by id of employees,
//as provide by IdComparator
Collections.sort(employees, new IdComparator());
//Ordered list
System.out.println("Sorted List on Id");
System.out.println(employees);
//Sorted by age of employees,
//as provide by AgeComparator
Collections.sort(employees, new AgeComparator());
//Ordered list
System.out.println("Sorted List on Age");
System.out.println(employees);
}
}
class Employee implements Comparable<Employee>{
private int id;
private int age;
private String name;
public Employee(int id, int age, String name){
this.id = id;
this.age = age;
this.name = name;
}
public int compareTo(Employee o) {
return name.compareTo(o.name);
}
public String toString(){
return "\n[Id: " + id + ", age: " + age + ", name: " + name +" ]";
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
class IdComparator implements Comparator<Employee>{
public int compare(Employee o1, Employee o2) {
if (o1.getId() < o2.getId()) {
return -1;
}else if (o1.getId() > o2.getId()) {
return 1;
} else {
return 0;
}
}
}
class AgeComparator implements Comparator<Employee>{
public int compare(Employee o1, Employee o2) {
if (o1.getAge() < o2.getAge()) {
return -1;
}else if (o1.getAge() > o2.getAge()) {
return 1;
} else {
return 0;
}
}
}
About Online Java8 Compiler
Try our Online Java8 Compiler (Version OpenJDK 11.0.17) to Edit, Run, and Share your Java8 Code directly from your browser. This online development environment provides you the latest version OpenJDK 11.0.17.
How to use Online Java8 Compiler?
Write and Execute Code
- Write your program (or, paste it) directly under the "Source Code" tab.
- If you want to save your program, go to the "Project" menu and save it.
- You can directly execute your program without saving it by clicking on on "Execute" button.
User Input
The latest version of Coding Ground allows to provide program input at run time from the termnial window exactly the same way as you run your program at your own computer. So simply run a program and provide your program input (if any) from the terminal window available in the right side.
Online Java8 Compiler: Keyboard Shortcuts
The following are the keyword shortcut of this Online Java8 Compiler:
Shortcut | Description |
⌘ + Enter | Run the program |
⌘ + S | Save Project (Login Required) |
⇧ + ⌘ + S | Save As Project |
⌘ + P | New Project |
⌘ + G | Share Project |
⌘ + Z | Undo Editing |
⌘ + Y | Redo Editing |
⌘ + A | Select All Text |
⌘ + X | Cut Selected Text |
⌘ + C | Copy Selected Text |
⌘ + V | Paste Copied Text |
⌘ + F | Search Text |
⌘ + ⌥ + F | Replace Text |
Shortcut | Description |
Ctrl + Enter | Run the program |
Ctrl + S | Save Project |
Shift + Ctrl + S | Save As Project |
Ctrl + G | Share Project |
Ctrl + Z | Undo Editing |
Ctrl + Y | Redo Editing |
Ctrl + A | Select All Text |
Ctrl + X | Cut Selected Text |
Ctrl + C | Copy Selected Text |
Ctrl + V | Paste Copied Text |
Ctrl + F | Search Text |
Ctrl + H | Replace Text |
Online Java8 Compiler: Save and Share Java8 Code (Project)
Save Java8 Project Online
You can save your Java8 Project with us so that you can access this project later on. To save a project you will need to create a login Id with us. So before you save a project, please create a login Id using a link given at the top right corner of this page.
Share Java8 Project Online
You can use this feature to share your Java8 Code with your teachers, classmates and colleagues. Just click Share Button and it will create a short link, which can be shared through Email, WhatsApp or even through Social Media. A shared link will be deleted if it has been passive for almost 3 months.
More Features of Online Java8 Compiler
- Theme – You can change the current editor's theme from the "Editor Theme" option under "Settings" menu.
- Font Size – You can change the font size of the editor /compiler from from the "Font Size" option under "Settings" menu.
- Tab Size – You can change the tab size from the "Tab Size" option under "Settings" Menu.
- Show/Hide Line Numbers – You can show/hide the line number with the code from the "Show Line Numbers" or "Hide Line Numbers" option under "Settings" Menu.
- And, many more.
Benefits of Using Online Java8 Compiler
There are several benefits of using the Online Java8 Compiler to run your Java8 code:
- Platform independence: You can run your code from any device without taking care of operating systems.
- Convenience: You don't need to install anything for using this.
- No setup required: There is no need for additional setup to run your code.
- Updated version: Our online compiler/editors/terminals are the latest up-to-date.