Data types in Java for Beginners| What is Data Types | Basic Java Programming | Hindi
Data Types And Variable
What are Java data types, and how are they grouped?
In Java, a variable must be a specified data type such as an integer, floating-point number, character Boolean, or string.
The two groups of data types are:
Primitive data types
which include byte, short, int, long, float, double, Boolean, and char
Non-primitive data types,
which include string, arrays, and classes
How do you define primitive data types and describe each by size and description?
byte is 1 byte in size.
It stores whole numbers from -128 to 127
short is 2 bytes in size.
It stores whole numbers from -32,768 to 32,767
int is 4 bytes in size.
It stores whole numbers from -2,147,483,648 to 2,147,483,647
long is 8 bytes in size.
It stores whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
float is 4 bytes in size
It stores fractional numbers and is sufficient for storing 6 to 7 decimal digits.
Float Salary = 15000.00f
Double is 8 byte in Size
It stores fractional numbers and is sufficient for storing 15 decimal digits.
Boolean is 1 bit in size.
It stores true or false values.
char is 2 bytes in size.
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