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Articles by Shiva Keerthi
16 articles
Java program to find Harmonic series
The reciprocals of an arithmetic series without considering 0 is known as Harmonic series. If $a_{1}, a_{2}, a_{3}$… is arithmetic series then $\frac{1}{a1}$, $\frac{1}{a2}$, $\frac{1}{a3}$, … is the harmonic series. In this article, we will discuss how to implement a Java program to find the harmonic series. Harmonic Series For 1st term n = 1 and for every term n is incremented by 1 and at last the nth term the value is ‘n’. Harmonic series : $1+\frac{1}{2}+\frac{1}{3}$.......+$\frac{1}{n}$ Where, 1/n is the nth term of harmonic series. Problem Statement Write a Java program to find the ...
Read MoreJava program to find sum of natural numbers using while loop
The sum of natural numbers can be calculated using different Iterative Statements in Programming Languages. Iterative Statements are statements that execute a particular set of code lines until the condition in the loop statement fails. In this article, we will discuss how to calculate the sum of natural numbers using a while-loop which is an iterative statement in Java. Sum of Natural Numbers The sum of natural numbers generally indicates the total sum of elements from 1 to n. Mathematically it can be represented as follows Sum of n Natural Numbers = 1+2+3+.........+(n-2) + (n-1) + n ...
Read MoreJava program to find cube root of a number using binary search
The cube root of a number is an integer value when multiplied by itself thrice, giving the original number. In this article, we are going to write a Java program to find the cube root of a number using binary search. Finding the cube root of a number is one of the applications of the binary search algorithm. We will discuss in detail how we calculate the cube root using a binary search algorithm in Java. Problem Statement Write a Java program to find the cube root of a number using Binary Search − Input 1 64 Output 1 4 ...
Read MoreJava program to find the smallest missing number
The smallest missing number is the smallest number that is missing from a stream of elements or in an Array. The stream may or may not contain continuous elements. If the stream is continuous then the smallest missing number is nothing but the Smallest Missing Number in a stream. In this section, we will discuss the various approaches to find a Smallest Missing Number in a stream of elements using Java programming language. Problem Statement Given a stream of integers find the smallest missing number from the stream. Input 1 arr=[1, 2, 3, 5, 6, 7, 8] Output 1 ...
Read MoreJava Program to Get System IP Address in Windows and Linux Machine
IP Address, also known as the Internet Protocol Address is a unique identifier that is assigned to a device in a network to identify the devices in the network and establish a connection between them. In this section, we will learn how to find the IP Address of a Windows and Linux Machine using Java Code. The IP Address can be represented in two formats. One format is IPv4 which is a 32 format containing decimals and dots. It has two parts, one part is network ID which identifies the network and the other is host ID which identifies ...
Read MoreJava program to find maximum odd number in array using stream and filter
In this section, we are going to write a Java program to find maximum odd number in an Array using Stream and Filter. Odd numbers are the numbers which cannot be divided by 2 or these numbers give remainder as 1 when they are divided by 2. In other terms which can be written in the form of 2n+1. We will find the maximum odd number in the array. Problem Statement Write a program in Java to find maximum odd number in array using stream and filter − Input array = {1, 7, 2, 3, 9, ...
Read MoreJava Program to Find Area of circle Using Method Overloading
We can calculate the area of the circle in Java using Method Overloading. “Method Overloading” is a feature in Java that allows one to write more than one method in the same class using the same method name. It will enable us to declare more than one method with the same names but with different signatures i.e., the number of parameters in the method may be different or the datatype of parameters may be different. Now, let us achieve Method Overloading in Java by considering the “area of a circle” as an example. Before moving to an example, now ...
Read MoreJava Program to Get the Union & Intersection of Two TreeSet
TreeSet is a class that implements Set interface in Java. In TreeSet the elements are stored in sorted order as it is implemented internally using a sorted balanced tree called as binary search tree. The elements in the TreeSet are stored in ascending order by default. Union of sets contains all the elements from both sets. Intersection of sets contain all the elements which are commonly present in both sets. In this section, we will be discussing about how to get the union and intersection of two TreeSet using Java. What are the Union and Intersection of Sets? ...
Read MoreJava Program to Get TreeMap Key, Value, or Entry Greater or Less than the Specified Value
A TreeMap is a class provided by Java that implements Map Interface. It is a collection of key-value pairs and the key-value pairs in TreeMap are stored in sorted order based on key values. An Entry is defined as a key-value pair in a TreeMap. In this article, we will look in detail how to get TreeMap key-value pair or entry greater or less than the specified value. Methods Used Now, we will be looking into some of the inbuilt methods and their functionality of TreeMap which are used in this particular article. higherKey() − This method is ...
Read MoreJava Program to Find the Lost Number
Lost Number is the number which is missing from a continuous stream of elements or in an Array. In this section, we will discuss the various approaches to find a lost number in a stream of elements using java programming language. Example for a lost number in an array Lost number is a number which is missing from a continuous sequence of a numbers in an array. Example 1 Consider an array: arr=[1, 2, 3, 4, 5, 6, 8] In the above array ‘arr’, 7 is missing, so 7 is the lost number Example 2 Consider an array: arr=[1, ...
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