In this article you will learn about loose coupling and tight coupling in java. In simple words “Coupling is the degree of dependency between the modules or Routines.” “In a software or program, the more modules or classes will communicate with each other means the more tightly they are coupled and on other hand, the […]
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Harshad numbers are those integers which are divisible by the sum of the digits of the number. Harshad numbers were defined by a mathematician from India, D. R. Kaprekar. Harshad numbers are also called Niven numbers. For example, the number 198. Sum of the digits of the number, 198 => 1 + 9 + 8 = 18, and, 18
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Are you facing the error “char cannot be dereferenced”? So in this article, we’re going to see the main reason behind this error (char cannot be dereferenced) and the possible solutions. As we know there are two types of data types – Primitive (i.e. byte, int, boolean) and Non-primitive (ie. Arrays, String). char is a
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Dereferencing means accessing an object from the heap using a reference variable Or we can say It is a process of accessing the referred value by a reference. Dereferencing’s main purpose is to place the memory address (where the actual object presents) into the reference. Example: Object ob = new Object(); String st = ob.toString();
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So in this tutorial, We will know that what kind of reasons can be for getting this error “Editor does not contain a main type” and we will see how to fix this error. Basically, this type of Error means your Editor is not able to find the “main” method in any of your current
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Automorphic numbers are those numbers that when squared have the exact same end digits as the number. For example, the number 376. Now the square of the number, 376 is 141376. The last three digits of the square are exactly like the number themselves. Hence, 376 is an Automorphic Number. However, let the number is
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Pronic numbers are those numbers who can be written as a product of two consecutive integers. It means, they are of the form: P = n * (n + 1) For example, the number 56 can be written as 7 * 8, that is, a product of two consecutive integers. Hence, the number 56 is
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Random numbers may be required for sorts of programming jobs. For example, statistical sampling, computer simulation, cryptography, and other areas where producing random unpredictable results is desirable. Java provides certain ways in which we can generate random numbers. Although, the generated random numbers are pseudo-random, they get the work done mostly. We can generate random
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