Difference between variable declaration and variable initialisation
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Declaring a variable reserves a name and some space in memory for a variable of the specified type, but doesn't give it a value. Initializing gives the variable a value. Depending on how you're going to use the variable, you can declare it without initializing it and then initialize it later, or declare and initialize at the same time.
EXAMPLE : int value1; // declares integer variable value1 = 6; // initializes integer variable that's already been declared int value2 = 5; // declares and initializes integer variable
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Declaring a variable reserves a name and some space in memory for a variable of the specified type, but doesn't give it a value. Initializing gives the variable a value. Depending on how you're going to use the variable, you can declare it without initializing it and then initialize it later, or declare and initialize at the same time.
EXAMPLE : int value1; // declares integer variable value1 = 6; // initializes integer variable that's already been declared int value2 = 5; // declares and initializes integer variable
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