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Object Oriented Programming Articles
Page 202 of 589
Java Program to Make a Simple Calculator Using switch...case
In this article, we will understand how to construct a simple calculator using switch-case. The switch statement evaluates an expression, matching the expression's value to a case clause, and executes statements associated with that case.Following are the arithmetic operations we are going to perform.AdditionSubtractionMultiplicationDivisionFloor DivisionModuloBelow is a demonstration of the same −InputSuppose our input is −The two inputs: 40.0 and 12.0 Operator:%OutputThe desired output would be −The result is 40.0 % 12.0 = 4.0AlgorithmStep 1 - START Step 2 - Declare three values namely my_input_1, my_input_2 and my_result and declare a character value namely operator. Step 3 - Read the required ...
Read MoreJava Program to Print Pyramid Star Pattern
In this article, we will understand how to print pyramid star pattern. The pattern is formed by using multiple for-loops and print statements. Below is a demonstration of the same − Input Suppose our input is − Enter the number of rows : 8 Output The desired output would be − The pyramid star pattern : * * * * * * * * * * * * * * * * ...
Read MoreJava Program to Print Mirror Upper Star Triangle Pattern
In this article, we will understand how to print mirror upper star triangle pattern. The pattern is formed by using multiple for-loops and print statements.Below is a demonstration of the same −InputSuppose our input is −Enter the number of rows : 8OutputThe desired output would be −The mirror upper star pattern : ******** ******* ****** ***** **** *** ** *AlgorithmStep 1 - START Step 2 - Declare four integer values namely i, ...
Read MoreJava Program to Print Hollow Right Triangle Star Pattern
In this article, we will understand how to print hollow right triangle star pattern. The pattern is formed by using multiple for-loops and print statements. For the pyramid at the first line it will print one star, and at the last line it will print n number of stars. For other lines it will print exactly two stars at the start and end of the line, and there will be some blank spaces between these two starts.Below is a demonstration of the same −InputSuppose our input is −Enter the size : 8OutputThe desired output would be −The hollow pyramid triangle ...
Read MoreJava Program to Print Half Diamond Star Pattern
In this article, we will understand how to print half diamond star pattern. The pattern is formed by using multiple for-loops and print statements.Below is a demonstration of the same −InputSuppose our input is −Enter the number of rows : 8OutputThe desired output would be −The half diamond pattern : * ** *** **** ***** ****** ******* ******** ******* ****** ***** **** *** ** *AlgorithmStep 1 - START Step 2 - Declare three integer values namely i, j and my_input Step 3 - Read the required values from the user/ define the values Step 4 - We iterate through two ...
Read MoreCheck if a string contains a number using Java.
To find whether a given string contains a number, convert it to a character array and find whether each character in the array is a digit using the isDigit() method of the Character class.Examplepublic class ContainsExample { public static void main(String args[]){ String sample = "krishna64"; char[] chars = sample.toCharArray(); StringBuilder sb = new StringBuilder(); for(char c : chars){ if(Character.isDigit(c)){ sb.append(c); } } System.out.println(sb); } }Output64
Read MoreJava Program to Print Square Star Pattern
In this article, we will understand how to print square star pattern. The pattern is formed by using multiple for-loops and print statements.Below is a demonstration of the same −InputSuppose our input is −Enter the length of a side : 8OutputThe desired output would be −The square pattern : * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ...
Read MoreJava Program to Add Two Binary Strings
In this article, we will understand how to add two binary strings in Java. A binary string is a sequence of numbers represented in bytes 0s and 1s.Below is a demonstration of the same −InputSuppose our input is −10101 10001OutputThe desired output would be −100110 AlgorithmStep 1- START Step 2- Create new scanner object Step 3- Enter two binary inputs Step 4- Define a carry flag Step 5- Use while condition to check if they are equal to 0 Step 6- If not, use the % operator and the carry flag to perform bitwise addition Step 7-Display it as result ...
Read MoreJava Program to Print a String
In this article, we will understand how to print a string in Java. A string is a pattern of characters and alphanumeric values. The easiest way to create a string is to write −String str = "Welcome to the club!!!"Whenever it encounters a string literal in your code, the Java compiler creates a String object with its value in this case, " Welcome to the club!!!'.As with any other object, you can create String objects by using the new keyword and a constructor. The String class has 11 constructors that allow you to provide the initial value of the string ...
Read MoreJava Program to Find Even Sum of Fibonacci Series till number N
In this article, we will learn how to find the even sum of the Fibonacci series up to a given number N. A Fibonacci series is a series where the next term is the sum of the previous two terms. An even Fibonacci series is a group of all the even numbers in the Fibonacci series. The first two terms of the Fibonacci sequence are 0 and 1. Fn = Fn-1 + Fn-2 Hence, a Fibonacci series can look like this - F8 = 0 1 1 2 3 5 8 13 or, this F8 = 1 1 2 3 5 ...
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