What are the different scopes for Java variables?
What are the different scopes for Java variables?
✍: Guest
The scope of a Java variable is determined by the context in which the variable is declared. Thus a java variable can have one of the three scopes at any given point in time.
1. Instance : - These are typical object level variables, they are initialized to default values at the time of creation of object, and remain accessible as long as the object accessible.
2. Local : - These are the variables that are defined within a method. They remain accessbile only during the course of method excecution. When the method finishes execution, these variables fall out of scope.
3. Static: - These are the class level variables. They are initialized when the class is loaded in JVM for the first time and remain there as long as the class remains loaded. They are not tied to any particular object instance.
2013-06-28, 2967👍, 0💬
Related Topics:
What will be the output of the following statement? System.out.println ("1" + 3);
What will be the output of the following statement? System.out.println ("1" + 3); It will print 13. 2013-07-03, 3876👍, 0💬
Is next a keyword in Java?
Is next a keyword in Java? No, next is not a keyword. 2013-06-26, 3721👍, 0💬
Is exit a keyword in Java?
Is exit a keyword in Java? No. To exit a program explicitly you use exit method in System object. 2013-06-27, 3240👍, 0💬
Can main method be declared final?
Can main method be declared final? Yes, the main method can be declared final, in addition to being public static. 2013-07-02, 3195👍, 0💬