Learn to write a simple Java program to add two integers and display their sum in the console. 1. Java example to add two integers In given Java exmple, we have three int type variables i.e. firstInteger, secondInteger and sum. We have assigned values to the first two integers, and then we have added them. …
Learn to read from and write to the system console in Java using readLine(), readPassword(), reader() and printf() methods.
Learn to calculate the average of the given N numbers in Java using three different methods. All methods are different based on how they provide the input to the program. 1. Algorithm for calculating the average In simple words, to calculate the average of N numbers we have to add …
Learn to check if a string is palindrome string with simple java programs using stack, queue, for and while loops. A palindrome is equal to its reverse.
Learn to write a java program to remove all the white spaces from a given string using regular expression (“\\s”) and isWhitespace() method.
Learn the different ways of counting the number of vowels and consonants in a given string using the Java 8 Streams and simple iteration.
In these java programs, learn to reverse the words of a string in Java without using api functions. We can reverse the words of string in two ways: Reverse each word’s characters but the position of word in string remain unchanged. Reverse the string word by word but each word’s …
Learn to sort an array of strings alphabetically. In given java program, strings are given as input from console and after sorting – printed in the console.
Learn to swap two numbers in given two Java programs. First program uses a temporary variable while second program does not uses any temp variable.
Learn to write program to find first prime numbers using Java 8 Stream API, where N is any given input number to the application.
Learn to write program for finding all the prime numbers from 1 and N, using Java 8 stream API, where N is any given input number to the application.
Learn about an efficient algorithm to determine a given number is prime or not. Also learn to implement prime number algorithm in Java 8 program.
Learn to write a simple java program to verify if a given number is deficient number or not. The value 2n − σ(n) is called the number’s deficiency.
A pronic number is a number which is the product of two consecutive integers, that is, a number of the form ‘n x (n + 1)’.
Learn to write a simple java program to verify if a given number is harshad number or not.
Learn to write a simple java program to verify if a given number is happy number or not.
Write a simple java program to verify if a given number is disarium number or not.
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