Data Types

• Data type: -

A data type is a term that refers to the kind of data that variable may hold in a program.

For example: -

int v;

The above statement declares an integer type variable v.

Java defines following data types: -

• Integer: -

Java includes four types of integers: -byte, short, int, long. Java does not support unsigned integers like other programming languages including C/C++, which support unsigned integers.

• Floating point-numbers: -

Java includes two types of floating point numbers float and double. This can be used to represent fractional value.

• Characters: -

This includes char, which represent symbols in character set, like numbers and letters. This is done by using ASCII values.

• Boolean: -

This include Boolean, using this we can represent, true or false values.

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