Often it is required to convert a string to an integer but before conversion it is recommended to check if the string being converted is in integer format or not.…
A list is a collection of elements of same or different data types. Suppose you have a list of integers and you want to find the sum of all elements…
What is a nested method If a method is defined inside another method, the inner method is said to be nested inside the outer method or it is called Nested…
Sometimes you need to add some attribute to an HTML element but not always, it only needs to be added if some condition is met. Example, when filling an account…
What is a palindrome string A string whose characters if arranged backwards(or in reverse order) are the same as the original string is called Palindrome. Examples of palindrome string are…
What is factorial Factorial of an integer(or a natural number) is the product of all numbers starting from the integer till 1. Example, factorial of 5 will be 5 *…
What is method overloading Method overloading in a class means having more than one methods with same name but with different number or types of arguments. Following are the examples…
What is a class Concept of class can be better explained and understood by an example. Suppose an apartment of hundreds of flats need to be made. All the flats…
A string is composed of characters each of which has a numeric index starting from 0. Thus, the string "python" has 6 characters with 'p' at index 0, 'y' at…