Here you will learn about hashcode in Java. Hash code is an integer returned by hashCode() method. It has many advantages in different applications in java. Let us see how this method is giving hash code, how it is useful and what is the significance in java? What is HashCode in Java? Based on hash …
Here you will get answer for very basic question asked by beginners i.e. can we overload main method in Java? A function is overloaded in java by changing the number of arguments or their type. The main method can also be overloaded in the same way we overload any other method. How Can We Overload main Method …
In this tutorial you will learn about difference between throw and throws keywords in java with example. When we run a java program which contains errors, programmers should handle errors by exception handling (using try, catch and finally blocks) or avoid (throw) it. Otherwise JVM will give error which causes the termination of the running …
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 …
To find out whether constructor returns any value or not, let’s learn about a constructor? In simple terms, the constructor is a special method, which is used to initialize an instance of a class. This special method differs from the actual methods of classes. The name of a constructor is always similar to the name …
Unlike C++, Java does not support operator overloading. To overload the standard arithmetic operators e.g. +, -, * and / etc, Java doesn’t provide freedom to programmers. Java does not support operator overloading because by choice of its developers where they wanted to make it a simple language. Overloading of operator allows you to do …
Thread: A sub-process or a smallest unit of processing, called thread. Generally a single thread work only on a single sub-process which may or may not be the part of whole processing to achieve any task. A thread is also a lightweight process. Multithreading: To complete any single process or to complete any task, if …
Yes, we can have multiple classes in same java file. But, there is one restriction over here, which is that you can have as many classes in one file but only one public class is allowed. If we try to declare 2 classes as public in the same file, the code will not compile. The …