Non access modifiers in java

Static, final, abstract and synchronized are considered as Non access modifiers in java.

static: It is used to represent the class members. It can be used with variable, method, initializer block and nested class.

final: It is used to restrict the further modification of instance variables, local variables , methods and classes.

abstract: abstract is used with class or method which must be enhanced or modified further.

synchronized: It is used to achieve thread safeness. It controls mutual exclusive problem in multithreading environment. Only one thread can access a resource at a particular instance of time. When a thread accesses a synchronized block or method, it acquires a lock on it and release the lock either after completion of method/block or any exception occur.

Java interview questions on access modifiers

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