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Thursday, 18 June 2015

How to storing Java Object In TreeMap

import java.util.Map;
import java.util.Set;
import java.util.TreeMap;

public class TreeMapStoreObject {

    public static void main(String[] args) {
       
    Map<Integer, Emp> tm = new TreeMap<Integer, Emp>();
   
    tm.put(1, new Emp("yogesh", 100));
    tm.put(2, new Emp("shivam", 200));
    tm.put(3, new Emp("ankush",250));
    tm.put(4, new Emp("anurag",300));
    tm.put(5, new Emp("ravi", 370));
   
    //Returns a Set view of the keys contained in this map.
    Set<Integer> keys = tm.keySet();
   
    for (Integer key : keys) {
        Emp emp = tm.get(key);
        System.out.println(" key ="+ key +" name ="+emp.getName()+" id = "+ emp.getName());
    }
 }
}

class Emp{
    private String name;
    private int id;
   
    public Emp(String name, int id) {
        this.name = name;
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }
   
}

Output:

 key =1 name =yogesh id = yogesh

 key =2 name =shivam id = shivam

 key =3 name =ankush id = ankush

 key =4 name =anurag id = anurag

 key =5 name =ravi id = ravi


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