Which of the following is a valid way to access a static variable within a static method?Question 5Answera.this.variableNameb.className.variableNamec.variableNamed.super.variableName
Question
Which of the following is a valid way to access a static variable within a static method?Question 5Answera.this.variableNameb.className.variableNamec.variableNamed.super.variableName
Solution
The valid way to access a static variable within a static method is option b. className.variableName.
Here's why:
a. this.variableName - 'this' keyword refers to the current instance of the object and cannot be used to access static variables.
b. className.variableName - This is the correct way to access a static variable. Static variables belong to the class, not the instance of the class. Therefore, they should be accessed by using the class name.
c. variableName - This can be used if you are within the same class and the context is clear. However, it's generally better practice to use the class name for clarity.
d. super.variableName - 'super' keyword is used to refer to the immediate parent class instance variable. It cannot be used to access static variables.
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