adspace


I have an HashMap object, which has with key and value pair.
It has 10 keys and values in that object. Now the question
is I want insert new key and value in middle or any where in
that list but not at the end or at the top. Is it possible
or not. If yes how can we achieve this one?

Answer Posted / manoj

package manu;

import java.util.HashMap;



public class Manu_HashMapTest
{
public static void main(String[] args)
{
HashMap<String,Integer> m=new HashMap<String,Integer>();
m.put("a",100);
m.put("b",200);
m.put("c", 300);
m.put("b", 800);//insert a new element....
System.out.println(m);
}
}

o/p->{a=100, c=300, b=800}
so Hash map does not give guarantee in order,so its not
possible to insert element in right position.

Manoj sahu,jajpur

Is This Answer Correct ?    5 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are the differences between heap and stack memory in java?

1134


What do you mean by an interface in java?

1100


What is parsing in java?

1038


What is the difference between break and continue statements?

1123


What is the difference between equals() and == in java?

1035


How to create a base64 decoder in java8?

1135


What is a classloader in java?

1086


What is an object in java and how is it created?

1136


Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2661


Differentiate between static and non-static methods in java.

1123


explain different ways of using thread? : Java thread

1079


Write a program to print count of empty strings in java 8?

1084


How to sort array in descending order in java?

991


Realized?

2259


What is java string pool?

1079