Introducing Numerical Data Types

In Java, we use numerical data types to represent numbers. Specifically, in this lesson, we're focusing on int and float. The int data type is used to represent whole integer numbers, and the float data type is used to represent decimal numbers - numbers with a decimal point.

The largest value an int can store is 2147483647, which is 231−12^{31} - 1, and the smallest is -2147483648, which is . Here's an example of using the number:

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