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Articles by Shriansh Kumar
Page 14 of 22
Java Program to Illustrate String Interpolation
String interpolation is a concatenation technique used to display output text dynamically or effectively by replacing the placeholder characters with variables (or strings in the subsequent examples). It restructures the code and prevents the need to repeatedly use variables to produce the output. It makes it efficient to write lengthy variable names or text just by replacing the placeholder with the variable names allocated to strings. String Interpolation in Java There are several ways in Java to perform String Interpolation with the help of the concatenation operator and library function or class. Here, we will discuss four different methods ...
Read MoreJava program to print prime numbers below 100
Any whole number which is greater than 1 and has only two factors i.e. 1 and the number itself, is called a prime number. Other than these two number it has no positive divisor. In this article, we will explain Java programs to print prime numbers between 1 to 100. Few examples of prime numbers are − 2, 3, 5, 7, 11 etc. Steps to Print Prime numbers below 100 Follow the steps below to print prime numbers below 100 in Java − Take integer variable, let's say "A" Divide the variable A with (A-1 to 2) If A ...
Read MoreJava strictfp keyword
The strictfp keyword is a modifier that stands for strict floating point. As the name suggests, it ensures that floating-point operations give the same result on any platform. This keyword was introduced in Java version 1.2. In Java, the floating point precision may vary from one platform to another. The strictfp keyword solves this issue and ensures consistency across all platforms. With the release of Java 17 version, the strictfp keyword is no longer needed. Regardless of whether you use this keyword, the JVM now provides consistent results for floating-point calculations across different platforms. When to use Java strictfp keyword? ...
Read MoreJava program to Print Odd and Even Number from an Array
Given an array of type Integer, write a Java program to find the odd and even numbers from that array. Those numbers which are completely divisible by 2 are called even numbers and if a number gives 1 as a remainder on dividing with 2 is known as odd number. Printing Odd and Even Number from an Array To print odd and even number from an array in Java, use the following ways − Using for Loop Using stream API Using for Loop In this approach, use the for ...
Read MoreJava Program to Compute the Running Total of a List
A running total (also known as an accumulated total) of a list represents the sum of a sequence of elements. As new elements are added to the sequence, the running total continuously updates. To perform this operation in Java, we can use for loop and while loop in our program. The program will have a time complexity of O(n), where n is the number of elements in the list because it loops through the list once and performs a constant-time operation for each element in the list. List is an interface of Java Collection Framework that stores collections of objects. ...
Read MoreJava Program to Create a Matrix and Fill it With Prime Numbers
As per the problem statement, we have to create an empty matrix and fill that matrix with the prime numbers starting from the smallest prime number i.e. 2. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. For instance, let's take the number 7. When we divide 7 by any number other than 1 and 7, we get a remainder. For example, dividing 7 by 2 gives a remainder of 1, and dividing 7 by 3 gives a remainder of 1 as well. Therefore, 7 has no divisors other ...
Read MoreInteresting interview question on hashCode and equals method
One of the most interesting interview questions that I have encountered in my Java programming career is about the hashCode and equals methods. Interviewers always check whether the candidate knows equals() and hasCode() methods as they are the most important yet most confusing methods of the Java Object class. Both methods are used to check the equality of two or more objects. This article aims to provide some interesting interview questions related to hashCode() and equals() methods that will improve one's knowledge as well as skills. Java Interview Questions on hashCode() and equals() method When an interviewer starts questioning about ...
Read MoreInteresting and Cool Tricks in Java
Java is a widely used programming language available nowadays. It serves to develop a variety of software including web and mobile applications. It is also preferable when it comes to developing a backend system. Java has made tremendous progress over the year that has changed the world. This is the reason why the demand for Java developers is still in the market. Being a Java developer, one might be interested in learning some cool tricks that can make the code more elegant, efficient and fun. In this article, we are going to share some useful tricks that we can use ...
Read MoreIs there any equivalent to typedef of C/C++ in Java?
We can find many similarities between Java and C/C++ programming languages in terms of syntaxes and features. But, there are several functionalities that have been omitted from Java like 'typedef'. If someone coming from a C/C++ background, must have heard the 'typedef' keyword, and often wonders, is there any equivalent to typedef in Java? In simple words, Java does not provide a direct equivalent to typedef. The creators of Java replaced this feature with classes. In fact, a class can do even more than a typedef can do. Replacement to typedef of C/C++ in Java? Before exploring the ...
Read MoreWhat is Iterable Interface in Java?
In simple words, the iterable interface is a common interface that allows us to iterate over a collection of objects. It was first introduced with the release of JDK 1.5 and made available in 'java.lang' package. The Java Collection Framework extends this interface, hence all the classes available in this collection framework by default implement the iterable interface. In other words, the classes of collection framework such as ArrayList, TreeSet, TreeMap and HashMap are iterable. This article aims to explain the iterable interface of Java along with its use case. Iterable Interface in Java The only use case exhibited ...
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