Java Tutorials

Return the Next Number from the Integer Passed in Java, for a given problem, we must first understand the problem statement thoroughly and observe if any constraints are given in the problem. Following this, we should determine the inputs required to solve the problem. Also, we should also decide on what our expected output would be. Finally, we determine the ...

Java program to calculate length of string – In this article, we will discuss the various methods to calculate the length of a string, str length in Java programming. String length() java has been written in 3 to 4 different ways, you can check out here. If you any queries about source code str length in java, leave a comment ...

Java programs: Basic Java programs with examples & outputs. Here we covered over the list of 500+ Java simple programs for beginners to advance, practice & understood how java programming works. You can take a pdf of each program along with source codes & outputs. In case if you are looking out for C Programs, you can check out that ...

Java program to implement calculator using JFrame/Swing With GUI – In this article, we will detail in on how to implement a calculator using Swing concept in Java programming along with detailed explanation of the source code. The method used in this article is as follow: Using JFrame As we all know, calculators are the mechanical or digital instruments which ...

Java code To Calculate Median – In this article, we will brief in on the mentioned means to  Finding the middle element in array. The following median code has been written in 4 different ways. If you have any doubts you can leave a comment here. The source code has written in: Using Standard Method Using Static Method Using Scanner ...

How the generics work with multiple types: “Generics” mechanism allows us to work with a class (or method) that suits for any type of data. Suppose we want one Stack that holds Integer data and another Stack that holds String data then we need two different classes. With generics, we can write only one class that works for both the ...

What is Parameterized Constructor in Java – Tutorial & Examples – If we want to set some data to the constructor so that it can be used in the constructor then we can send so like Person r=new Person(10,20); to receive the values, the corresponding constructor should have formal arguments like. [crayon-6aa54a0a70e1c617739334/] If we want to send three values to constructor ...

Java exception Throw Clause – “throw” clause is used to throw an exception from our side. Normally, the system throws an exception when a runtime error occurs. Generally “throw” is used in two situations When we want to throw a new exception object (that is created by us) When we want to pass an exception object from one place to ...

Java Constructor Chaining – Calling one constructor from another constructor is generally referred to as constructor chaining. This can be achieved in two ways. this() super() in some cases we use only this(), in some other cases, we use only super(). Sometimes we use both (but not directly). Normal Java constructor calling (without chaining) When we create an object, its ...

What is Exception Handling In Java – When we work with a program we come up with different kinds of errors like syntactical errors, logical errors, runtime errors, etc. let us try to differentiate these errors with a simple program. Example Program To Differentiate the Errors: [crayon-6aa54a0a7187c877526544/] The above program will not cross the compilation stage because there is a ...