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Wednesday, November 20, 2013

Sorting Employee based on Name of the Employee using collections in java

package CollectionsExamples;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Employee1 {
    private int id;
    private String name;
    private int age;
  
    public Employee1(int id,String name,int age) {
        this.age = age;
        this.id = id;
        this.name = name;
    }
    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;
    }*/
    @Override
    public String toString() {
        // TODO Auto-generated method stub
        return id+" "+name+" "+age;
    }
    public static void main(String[] args) {
        // TODO Auto-generated method stub
List<Employee1> li=new ArrayList<Employee1>();
Employee1 e=new Employee1(9,"chaitu",26);
Employee1 e1=new Employee1(2,"mahesh",22);
Employee1 e2=new Employee1(8,"vinay",28);
Employee1 e3=new Employee1(6,"ravi",16);
li.add(e);
li.add(e1);
li.add(e2);
li.add(e3);
li.add(new Employee1(7,"Ajay",24));
li.add(new Employee1(7,"bala",24));
System.out.println(li);
Collections.sort(li, new MyComparator1());
System.out.println(li);

    }
  
}

________________________

package CollectionsExamples;

import java.util.Comparator;


public class MyComparator1 implements Comparator<Employee1> {

    public int compare(Employee1 o1, Employee1 o2) {
       
        String name1=o1.getName();
        String name2=o2.getName();
        return name1.compareTo(name2);
    }

}

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