Interested to Buy Any Domain ? << Click Here >> for more details...
How to extract HashMap values?
- 5 Answers
- 11637 Views
- Marlabs, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
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 |
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 |
Answer / prakash
By using Iterator interface and by using enhanced for
loop(for each for loop).
| Is This Answer Correct ? | 2 Yes | 0 No |
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 |
Answer / prachi
By using Map interface in-built funtions either keySet() or entrySet().
| Is This Answer Correct ? | 0 Yes | 0 No |
What is the static method?
What is difference between add() and addelement() in vector?
What is string and its types?
what are the differences between final,finally,finalize methods?
What does opcode mean?
. Explain Java String Pool.
What does string intern() method do?
I Have a class abstract with one abstract method, so that method should override in the subclass, but i dont want to override, if i am not override what will happen? If compilation will occur then i dont want to give compilation error, then what we need to do??? See the sample program. public abstract class AbstractExample { public abstract void sampleMethod(); } public class AbstractExampleImple extends AbstractExample { }
What is final?
What is a control variable example?
What are format specifiers in java?
How to sort numbers in java without array?
Core Java 
