Primitive Type vs. Reference Type

int a = 11; // Primitive Type 

Integer b = new Integer(11); // Reference Type

Source: stackoverflow.com

Primitive Type vs. Reference Type

+================+=========+===================================================================================+
| Primitive type | Size    | Description                                                                       |
+================+=========+===================================================================================+
| byte           | 1 byte  | Stores whole numbers from -128 to 127                                             |
+----------------+---------+-----------------------------------------------------------------------------------+
| short          | 2 bytes | Stores whole numbers from -32,768 to 32,767                                       |
+----------------+---------+-----------------------------------------------------------------------------------+
| int            | 4 bytes | Stores whole numbers from -2,147,483,648 to 2,147,483,647                         |
+----------------+---------+-----------------------------------------------------------------------------------+
| long           | 8 bytes | Stores whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 |
+----------------+---------+-----------------------------------------------------------------------------------+
| float          | 4 bytes | Stores fractional numbers. Sufficient for storing 6 to 7 decimal digits           |
+----------------+---------+-----------------------------------------------------------------------------------+
| double         | 8 bytes | Stores fractional numbers. Sufficient for storing 15 decimal digits               |
+----------------+---------+-----------------------------------------------------------------------------------+
| char           | 2 bytes | Stores a single character/letter or ASCII values                                  |
+----------------+---------+-----------------------------------------------------------------------------------+
| boolean        | 1 bit   | Stores true or false values                                                       |
+----------------+---------+-----------------------------------------------------------------------------------+

Source: stackoverflow.com

Similar codes

0 vote103 views1 answer
Views in android
Java
3 votes142 views2 answers
Boolean print condition java
Java
0 vote169 views1 answer
Generic variable java
Java
3 votes142 views3 answers
Change java version
Java
0 vote142 views1 answer
! en java
Java
3 votes137 views1 answer
How to initialize char in java
Java
52 votes140 views3 answers
Java get input
Java
1 vote161 views1 answer
Spring scheduled
Java Spring
4 votes128 views2 answers
Dfhgodjfgiojdfiojgjkdhjbsdv JKNJZXcnmvmcvbpdfh
Java
1 vote103 views1 answer
Observer vs observable
Java