Java Inheritance II HackerRank Problem : Write the following code in your editor below: A class named Arithmetic with a method named add that takes 2 integers as parameters and returns an integer denoting their sum. A class named Adder that inherits from a superclass named Arithmetic. Your classes should not be public. Firstly know about Inheritance in JAVA – Inheritance is an important pillar of OOP(Object Oriented Programming). It is the mechanism in java by which one class is …
Month: May 2018
Problem related to Java Datatypes Hackerrank Problem : Java has 8 primitive datatypes: char, boolean, byte, short, int, long, float, and double are Java Datatypes. For this Java DataTypes Hackerrank Problem, we’ll work with the primitives used to hold integer values (byte, short, int, and long): A byte is an 8-bit signed integer. A short is a 16-bit signed integer. An int is a 32-bit signed integer. A long is a 64-bit signed integer. Given an input integer, you must …
Problem : When a method in a subclass overrides a method in superclass, it is still possible to call the overridden method using super keyword. It is a problem of Java Method Overriding by Super Keyword. If you write super.func() to call the function func(), it will call the method that was defined in the superclass. You are given a partially completed code in the editor. Modify the code so that the code prints the following text: Hello I am a …
Here the challenge of Java End-of-file HackerRank Problem is to read n lines of input until you reach EOF, then number and print all lines of content. EOF represents — end-of-file. To solve Java End-of-file HackerRank Problem we take a hint like this- Hint: Java’s Scanner.hasNext() method is helpful for this problem. HERE– hasNext() checks if there is a string remaining in the Scanner; and returns false only when nothing is left there, which is equivalent to EOF. Input Format …
Roy wants to change his profile picture on Facebook. Now Facebook has some restriction over the dimension of Roy’s Picture that we can upload. It is a problem of . Minimum dimension of the picture can be L x L, WHERE L is the length of the side of square. Now Roy has N photos of various dimensions. Dimension of a photo is denoted as W x H where W – width of the photo AND H – Height of the …
You have been given a String S consisting of uppercase and lowercase English alphabets. You need to change the case of each alphabet in this String. That is, all the uppercase letters should be converted to lowercase and all the lowercase letters should be converted to uppercase. That is Toggle String. You need to then print the resultant String to output. Input Format Of Toggle String The first and only line of input contains the String S Output Format Print …
Dan is playing a video game in which his character competes in The Hurdle Race. Hurdles are of varying heights, and Dan has a maximum height he can jump. There is a magic potion he can take that will increase his maximum height by 1 unit for each dose. How many doses of the potion must he take to be able to jump all of the hurdles? Given an array of hurdle heights h, and an initial maximum height Dan …