Data types in Java

It is important to state that java is a strong type language.

We know that a variable is nothing but a named memory allocation.

A variable is defined by data type. That means the data type specifies the size and type of values that can be stored.

When we want to use a variable in a program, we should first declare it as

int a;

Here a is a variable which can store integer data. int is called data type for example

A can store an integer number like 150 as

int a=150;

Here the value 150 is assigned to a which is called literal.

There are four basic primitive data types.

  1. Integer Datatypes
  2. Double Datatypes
  3. Character Datatypes
  4. Boolean Datatypes
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