How to extract HashMap values?

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Question Posted / siddpany

5 Answers
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How to extract HashMap values?..

Answer / siddpany

class hashMap
{
public static void main(String args[])
{
HashMap map = new HashMap();
map.put("key1",200);
map.put("key1",100);
map.put("key1",400);
map.put("key1",700);
Set set = map.keySet();
//for each loop
for(Object object :set)
{
System.out.println(map.get(Object));
}

Is This Answer Correct ?

11 Yes

4 No

How to extract HashMap values?..

Answer / srikanth

package com.sri;

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

public class entry {

public static void main(String[] args) {
try{
HashMap<Integer,Integer>tm=new
HashMap<Integer,Integer>();
tm.put(100,200);
tm.put(200,101);
tm.put(600,700);
tm.put(700,103);
tm.put(900,104);
Set s=tm.entrySet();
Iterator it=s.iterator();
while(it.hasNext()){
Map.Entry me=(Map.Entry)it.next();
System.out.println(me.getKey()
+"......"+me.getValue());
}
}catch(Exception e){
e.printStackTrace();
}
}

}

Is This Answer Correct ?

3 Yes

0 No

How to extract HashMap values?..

Answer / prakash

By using Iterator interface and by using enhanced for
loop(for each for loop).

Is This Answer Correct ?

2 Yes

0 No

How to extract HashMap values?..

Answer / qamar islam

package Qamar;
import java.util.*;

import javax.xml.crypto.dsig.spec.HMACParameterSpec;
public class HashMapExtract {

public static void main(String args[])
{
HashMap<Integer, String> hm=new HashMap<Integer, String>();
hm.put(1, "Qamar");
hm.put(2, "Gulnar");
hm.put(3, "Qamar");
hm.put(4, "Gulnar");
hm.put(51, "Qamar");
hm.put(6, "Gulnar");
Set set =hm.entrySet();

Iterator itr=set.iterator();
while(itr.hasNext())
{
System.out.println("values in hashmap: "+itr.next());
}
}
}

Is This Answer Correct ?

0 Yes

0 No

How to extract HashMap values?..

Answer / prachi

By using Map interface in-built funtions either keySet() or entrySet().

Is This Answer Correct ?

0 Yes

0 No

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