Fibonacci Series generates subsequent number by adding two previous numbers. Fibonacci series starts from two numbers − F0 & F1. The initial values of F0 & F1 can be taken 0, 1 or 1, 1 respectively.ExampleLive Demopublic class FibonacciSeriesWithWhileLoop{    public static void main(String args[]) {       int a, b, c, i = 1, n;       n = 10;       a = b = 1; System.out.print(a+" "+b);       while(i

In English alphabet the characters 'a', 'e', 'i', 'o', 'u' are vowels and remaining letters are consonants. To find whether the given letter is a vowel or consonant.Using loop and or operator verify whether given character is 'a' or 'e' or 'i' or 'o' or 'u' else it is consonant.Exampleimport java.util.Scanner; public class VowelOrConsonant {    public static void main(String args[]){       System.out.println("Enter a character :");       Scanner sc = new Scanner(System.in);       char ch = sc.next().charAt(0);       if(ch == 'a'|| ch == 'e'|| ch == 'i' ||ch == 'o' ||ch == ... Read More

Following is a program to swap two numbers using XOR operator.Examplepublic class ab31_SwapTwoNumberUsingXOR {    public static void main(String args[]){       int a,b;       Scanner sc = new Scanner(System.in);       System.out.println("Enter a value :");       a = sc.nextInt();       System.out.println("Enter b value :");       b = sc.nextInt();       a = a^b;       b = a^b;       a = a^b;       System.out.println("Value of the variable a after swapping : "+a);       System.out.println("Value of the variable b after swapping : "+b);    } }OutputEnter a value : 55 Enter b value : 64 Value of the variable a after swapping : 64 Value of the variable b after swapping : 55

The circumference of a circle is double the product of its radius and the value of PI. Therefore, to calculate the circumference of a circleGet the radius of the circle form the user.Calculate the productPrint the final result.Example: Finding the circumference of a circle import java.util.Scanner; public class CircumfrenceOfCircle {    public static void main(String args[]){       int radius;       double circumference;       Scanner sc = new Scanner(System.in);       System.out.println("Enter the radius of the circle ::");       radius = sc.nextInt();       circumference = Math.PI*2*radius;       System.out.println("Circumference ... Read More

Area of a circle is the product of the square of its radius, and the value of PI, Therefore, to calculate the area of a rectangleGet the radius of the circle.Calculate the square of the radius.Calculate the product of the value of PI and the value of the square of the radius.Print the result.Exampleimport java.util.Scanner; public class AreaOfCircle {    public static void main(String args[]){       int radius;       double area;       Scanner sc = new Scanner(System.in);       System.out.println("Enter the radius of the circle ::");       radius = sc.nextInt();   ... Read More

Area of a triangle is half the product of its base and height. Therefore, to calculate the area of a triangle.Get the height of the triangle form the user.Get the base of the triangle form the user. Calculate their product and divide the result with 2.Print the final result.Exampleimport java.util.Scanner; public class AreaOfTriangle {    public static void main(String args[]){       int height, base, area;       Scanner sc = new Scanner(System.in);       System.out.println("Enter the height of the triangle ::");       height = sc.nextInt();       System.out.println("Enter the base of the triangle ::"); ... Read More

Area of a rectangle is the product of its length and breadth. Therefore, to calculate the area of a rectangleGet the length of the rectangle form the user.Get the breadth of the rectangle form the user.Calculate their product.Print the product.ExampleBelow is an example to find the area of a rectangle in Java using Scanner class.import java.util.Scanner; public class AreaOfRectangle {    public static void main(String args[]){       int length, breadth, area;       Scanner sc = new Scanner(System.in);       System.out.println("Enter the length of the rectangle ::");       length = sc.nextInt();       ... Read More

A square is a rectangle whose length and breadth are same. Therefore, Area of a rectangle is the square of its length. so, to calculate the area of a squareGet the length of the square form the user.Calculate its square.Print the square.Exampleimport java.util.Scanner; public class AreaOfSquare {    public static void main(String args[]){       int length, area;       Scanner sc = new Scanner(System.in);       System.out.println("Enter the length of the square ::");       length = sc.nextInt();       area = length* length;       System.out.println("Area of the square is ::"+area);   ... Read More

Recursion is the process of repeating items in a self-similar way. In programming languages, if a program allows you to call a function inside the same function, then it is called a recursive call of the function.Following is an example to find palindrome of a given number using recursive function.Examplepublic class PalindromeRecursion {    public static boolean isPalindrome(String str){       if(str.length() == 0 ||str.length()==1){          return true;       }       if(str.charAt(0) == str.charAt(str.length()-1)){          return isPalindrome(str.substring(1, str.length()-1));       }       return false; ... Read More

To find the sum of elements of an array.create an empty variable. (sum)Initialize it with 0 in a loop.Traverse through each element (or get each element from the user) add each element to sum.Print sum.Exampleimport java.util.Arrays; import java.util.Scanner; public class SumOfElementsOfAnArray {    public static void main(String args[]){       System.out.println("Enter the required size of the array :: ");       Scanner s = new Scanner(System.in);       int size = s.nextInt();       int myArray[] = new int [size];       int sum = 0;       System.out.println("Enter the elements of the array one by one ");       for(int i=0; i