There are situations when we need to check if a string is an integer. I will be telling you some of the ways to perform this operation in this article. Let us go through all the methods one after another along with their explanation. 1. Using parseInt method The parseInt method comes inside the Integer […]
4 Ways to Check if String is Integer in Java Read More »
In this blog, we will see how to capitalize the first character of each word present in a given string. There can be two different ways to achieve our desired result. Let us see both of them one after another. 1. Using Split Function with for Loop Code: Output: Code Explanation: We have created a
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In any programming language, whenever we declare and create an object it takes some bytes of memory in the heap memory. After the usage of the objects, we need to delete them from heap memory as they might be responsible for taking some unwanted space. Let’s assume we forget to remove them and you are
Why Java Does Not Support Destructor? Read More »
Method overloading states that we can have methods with the same name but something in their parameters should be different. If you know about constructor overloading then it is pretty similar to method overloading. Method overloading helps us from writing the same methods under different names. For example, a method involving multiplication of 2 numbers
Method Overloading in Java With Example Read More »
In this article, we will look at how to evaluate a given Postfix expression to a result value. This is a problem related to Stack Data Structure. We will look at the algorithm with a step-by-step example along with the implementation in code. Let us first have a quick look at Postfix Expressions. So, Postfix
Evaluate Postfix Expression in Java Read More »
This article will look at how we can use Java Reflection API to invoke a Static method. We will see the steps and the explanation with code. Let us first have a quick look at Reflection API. Reflection in Java is a process of examining or modifying the behavior of a class at run time.
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In this article, we will discuss volatile vs synchronized in Java. First, we will define what is synchronized. Synchronized Keyword Synchronized is the keyword which is applied on blocks and methods but not on the classes and variables. When multiple threads are trying to access the same Java object so this situation leads to a
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Here, we will discuss what is a one-dimensional array and how to use it in Java. A one-dimensional array or 1D array is the list of variables of the same data type stored in the contiguous memory locations. We can access these variables of a 1-d array by an index value in square brackets followed
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