Modifying Variables

Section 4.4 Modifying Variables

After declaring and initializing a variable, the stored value is not set in stone. It can be updated!

Next, we’ll learn how to modify the value of a variable in a program.

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Suppose you declare and initialize a variable at the beginning of your program as follows:

int var;
var = 10;

What is the value of the variable var after the line

var = var + 20;

has been executed?

Continuing from the question above, your program now contains the next line:

var = var - 5;

What is the value of var after this statement?

Finally, your program contains the two lines:

var = 100;
var = var+50;

What is the value of var after these two lines have been executed?