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What is local variable and class instance?

Local variables are not visible outside the method.Instance variables are declared in a class, but outside a method. They are also called member or field variables. When an object is allocated in the heap, there is a slot in it for each instance variable value.


What are instance class and local variables in Java?

Instance variables hold values that must be referenced by more than one method, constructor or block, or essential parts of an object's state that must be present throughout the class. Local variables − Local variables are declared in methods, constructors, or blocks.

What is local variable in Java?

A local variable in Java is a variable that's declared within the body of a method. Then you can use the variable only within that method. Other methods in the class aren't even aware that the variable exists. If we are declaring a local variable then we should initialize it within the block before using it.

What is variable or class variable?

In object-oriented programming with classes, a class variable is any variable declared with the static modifier of which a single copy exists, regardless of how many instances of the class exist. Note that in Java, the terms "field" and "variable" are used interchangeably for member variable.

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