This is so because of static variables or for that matter, all the static members are not associated with instances, but with classes. However, if the same variable age would have been declared as a static variable, then all the objects declared for this class would share the same copy of the static variable. If you change them, they will store different values then. In the above example, both the person objects p1 and p2 have their own local copy of the non-static variable age. When you create an object or instance for a class in Java, each object will have its own copy of the members such as variables and methods. So without any further ado, let’s dive deep into the tutorial. In this detailed and comprehensive guide on Static Keyword in Java, you will look into all 4 members along which you can use the static keyword with practical, hands-on examples on each of them. You can simply access them using the class name. On a side note, if you consider the methods inside the “Math” class in Java, you will find that most of its methods are static. In contrast to this, non-static members of the same class will cease to exist when there is no object or the object goes out of scope. If any member in a class is declared as static, it means that even before the class is initiated, all the static members can be accessed and become active. The static member will be shared among all instances of the class, so we will only create one instance of it. Static keyword in java in Java indicates that a particular member is not an instance, but rather part of a type. But, yes, it depends on the choice of the developer. In fact, the main method of a class in Java usually has a static keyword associated with it. You can access them simply using the class name. In fact, you can access these members even without creating an instance of an object for those classes. In simple words, if you use a static keyword with a variable or a method inside a class, then for every instance that you create for that class, these static members remain constant and you can’t change or modify them. In Java, it is possible to use the static keyword with methods, blocks, variables, as well as nested classes. This is where you can use the static keyword in Java. However, there might be situations where you want to access only a couple of methods or variables of a class and you don’t want to create a new instance for that class just for accessing these members. Generally, if you want to access variables or methods inside a class, you first need to create an instance or object of that class. The most important reason why static keywords are heavily used in Java is to efficiently manage memory. One such frequently used keyword in Java is the “ Static” keyword. There are tons of reserved keywords in Java that cannot be used as names of variables or identifiers.
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