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package Base;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.Comparator;

import java.util.List;

class Employee implements Comparable<Employee> {

private int id;

private String name;

private int age;

private long salary;

public Employee(int id, String name, int age, long salary) {

super();

this.id = id;

this.name = name;

this.age = age;

this.salary = salary;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

public long getSalary() {

return salary;

}

public void setSalary(long salary) {

this.salary = salary;

}

@Override

public String toString() {

// TODO Auto-generated method stub

return "[id=" + this.id + ",name=" + this.name + ",age=" + this.age

+ ",salary=" + this.salary + "]\n";

}

@Override

public int compareTo(Employee o) {

// TODO Auto-generated method stub

return (this.id - o.id);

}

public static Comparator<Employee> ageComparator = new Comparator<Employee>() {

@Override

public int compare(Employee o1, Employee o2) {

// TODO Auto-generated method stub

return o1.age - o2.age;

}

};

public static Comparator<Employee> salaryComparator = new Comparator<Employee>() {

@Override

public int compare(Employee o1, Employee o2) {

// TODO Auto-generated method stub

return (int) (o1.salary - o2.salary);

}

};

public static Comparator<Employee> nameComparator = new Comparator<Employee>(){

@Override

public int compare(Employee o1, Employee o2) {

// TODO Auto-generated method stub

return o1.name.compareTo(o2.name);

}

};

}

public class ComparableDemo {

public static void objectSorting() {

int[] iArr = new int[] { 1, 5, 2, 3, 4 };

Arrays.sort(iArr);

System.out.println(Arrays.toString(iArr));

String[] sArr = new String[] { "ddd", "bbb", "ccc", "aaa" };

Arrays.sort(sArr);

System.out.println(Arrays.toString(sArr));

List<String> list = new ArrayList<String>();

list = Arrays.asList(sArr);

Collections.shuffle(list);

System.out.println(list);

Collections.sort(list);

System.out.println(list);

}

public static void classSorting() {

Employee[] empArr = new Employee[4];

empArr[0] = new Employee(10, "Mikey", 25, 10000);

empArr[1] = new Employee(20, "Arun", 29, 20000);

empArr[2] = new Employee(5, "Lisa", 35, 5000);

empArr[3] = new Employee(1, "Pankaj", 32, 50000);

Arrays.sort(empArr, Employee.nameComparator);

System.out.println(Arrays.toString(empArr));

}

public static void main(String[] args) {

// objectSorting();

classSorting();

}

}