Map.Entry interface helps us iterating a Map class such as HashMap, TreeMap etc. In this tutorial, we will learn methods and usage of Map.Entry interface… [Read More]
Archives for 2014
How To Convert Char To String and a String to char in Java
In this tutorial, we will see programs for char to String and String to char conversion. Program to convert char to String We have following… [Read More]
How to convert a char array to a string in Java?
There are two ways to convert a char array (char[]) to String in Java: 1) Creating String object by passing array name to the constructor… [Read More]
Difference between Iterator and ListIterator in java
Here we will discuss the differences between Iterator and ListIterator. Both of these interfaces are used for traversing but still there are few differences in… [Read More]
ListIterator in Java with examples
In the last tutorial, we discussed Iterator in Java using which we can traverse a List or Set in forward direction. Here we will discuss… [Read More]
Java Iterator with examples
Iterator is used for iterating (looping) various collection classes such as HashMap, ArrayList, LinkedList etc. In this tutorial, we will learn what is iterator, how… [Read More]
How to sort Hashtable in java
Hashtable doesn’t preserve the insertion order, neither it sorts the inserted data based on keys or values. Which means no matter what keys & values… [Read More]
Difference between HashMap and Hashtable
What is the Difference between HashMap and Hashtable? This is one of the frequently asked interview questions for Java/J2EE professionals. HashMap and Hashtable both classes implements java.util.Map interface, however there are… [Read More]
C Program to display Fibonacci series
In this tutorial, we will learn how to write a C Program to display fibonacci series. The Fibonacci series is a sequence of numbers in… [Read More]
C program to Reverse a String using recursion
In this article, we will write a C program to reverse a string using recursion. A function calling itself with smaller instances is called recursion…. [Read More]
C Program to find prime numbers in a given range
In this article, we will write a C Program to find prime numbers in a given range. For example, if user enters the range from… [Read More]
C Program to check Armstrong number
In this example, we will write a C Program to check Armstrong number. An Armstrong number (also known as narcissistic number) is a number that… [Read More]
C Program to find factorial of a number using Recursion
In this guide, we will write a C Program to find factorial of a number using recursion. Recursion is a process in which a function… [Read More]
C Program to reverse a given number
In this article, we will learn how to write a C program to reverse a number. For example, if the given number is 1234 then… [Read More]
C Program to find sum of array elements
In this article, we will learn how to write a C program to find sum of array elements. For example, if the array is [1,… [Read More]
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