Variable Type - Int

The Integer Variable

The Int variable is a variable that can only host numerical values. These values cannot contain a decimal, or the values after the decimal will always be ignored.

Declaration format is almost the same, except it cannot contain letters or symbols:

int yourVariableName =0;

Some examples of how Java will treat Int mathematics.

This code is fully functional:
int twoHundred = 200;
This code is will not function:
int twoHundredPointFive = 200.5;

Integers may not contain a value beyond the decimal, they must be entirely whole numbers.

Doubles are declared in the same way as integer variables.

This code is fully functional:
double twoHundredPointFive = 200.5;
This code is ALSO fully functional.
double twoHundred = 200;

Please watch the video I made on this subject if you'd like an example of where and how to declare a variable that contains an integer.
DETAILED VIDEO BELOW



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