map in collection example

public class Men {
private int id;
private String name;
private float price;
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 float getPrice() {
return price;
}
public void setPrice(float price) {
this.price = price;
}

}

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import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Scanner;

import java.util.Set;

public class MapDemo {

public static void main(String[] args) {

ArrayList a=new ArrayList();

for(int i=0;i<10 div="" i="">

Men m=new Men();

m.setId(i);

m.setName("men"+i);

m.setPrice(200*i);

a.add(m);

}

ArrayList b=new ArrayList();

for(int i=0;i<10 div="" i="">

Men m=new Men();

m.setId(i);

m.setName("women"+i);

m.setPrice(200*i);

b.add(m);

}

HashMap>shoping=new HashMap();

shoping.put("men",a);

shoping.put("women",b);

Set s=shoping.keySet();

int i=0;

for(String t:s){

System.out.println("press "+(i+1) +" for " + t.toUpperCase());

i++;

}

Scanner ss=new Scanner(System.in);

System.out.println("Enter your Choice : ");

int choice=ss.nextInt();

System.out.println(choice);

switch(choice){

case 1:

List list=shoping.get("men");

for(Men mm:list){

System.out.println(mm.getId()+"\t"+mm.getName()+"\t"+mm.getPrice());

}

break;

case 2:

List list1=shoping.get("women");

for(Men mm:list1){

System.out.println(mm.getId()+"\t"+mm.getName()+"\t"+mm.getPrice());

}

break;

default:

}

}

}