Found 9326 Articles for Object Oriented Programming

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

A factorial of a particular number (n) is the product of all the numbers from 0 to n (including n) i.e. Factorial of the number 5 will be 1*2*3*4*5 = 120. To find the factorial of a given number. Create a variable factorial initialize it with 1. start while loop with condition i (initial value 1) less than the given number. In the loop, multiple factorials with i and assign it to factorial and increment i. Finally, print the value of factorial.Exampleimport java.util.Scanner; public class FactorialWithWhileLoop {    public static void main(String args[]){       int i =1, factorial=1, number;       System.out.println("Enter ... 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

The interface Set does not allow duplicate elements, therefore, create a set object and try to add each element to it using the add() method in case of repetition of elements this method returns false −If you try to add all the elements of the array to a Set, it accepts only unique elements so, to find duplicate characters in a given stringConvert it into a character array.Try to insert elements of the above-created array into a hash set using add method.If the addition is successful this method returns true.Since Set doesn't allow duplicate elements this method returns 0 when ... Read More

ASCII stands for American Standard Code for Information Interchange. There are 128 standard ASCII codes, each of which can be represented by a 7-digit binary number: 0000000 through 1111111.If you try to store a character into an integer value it stores the ASCII value of the respective character.Exampleimport java.util.Scanner; public class ASCIIValue {    public static void main(String args[]){       System.out.println("Enter a character ::");       Scanner sc = new Scanner(System.in);       char ch = sc.next().charAt(0);       int asciiValue = ch;       System.out.println("ASCII value of the given character is ::"+asciiValue);   ... Read More