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Variables are items, which change their values during the execution of a program.
Constants do not change the value during the execution of a program.
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What are all the variables?
There are 'constant variables' , 'independant variables' and 'dependent variables' Constant Variable- things in the experimment that should be kept the same Independant variables- something that can be varied in an experiment Dependant variable- something that can be affected
WAP to show the difference between a variable and static variable?
difference between constant and static variables in java
What are the 'Constants' and 'Variables' in Java?
A variable is a memory address that holds a value. A constant is simply a variable that does not change value.
What is the difference between macros and constant variable?
Macros are processed at preprocessing time where as constant variables are processed at complie time. Macros doesnot have any scope but constant variables has scope. Macros doesnot have the type checking where as constant variables have type checking.
Is declaration of variables allocated memory?
Constants, static variables and global variables are allocated in the program's data segment at compile time. Local variables are allocated on the stack at runtime. Variables cannot be allocated on the heap, you must use a constant, static variable, global variable or local variable to store the start address of a dynamic memory allocation. The variable must be a raw pointer or a reference handle (a smart pointer).
