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 vote106 views2 answers
How to select multiple non-consecutive words on mac
Java
0 vote86 views1 answer
Mp3 player Java
Java
0 vote99 views1 answer
Spigot coding how to send a message to player after commadn
Java
0 vote108 views2 answers
How to calculate min, max and average and write the output into into a text file in java
Java
0 vote130 views1 answer
How do I test the reverse method in java using jest
Java
1 vote96 views6 answers
Kotlin to java converter
Java
10 votes156 views3 answers
Set vs list java
Java
17 votes90 views2 answers
Java constructor
Java
1 vote115 views1 answer
GetIntExtra(java.lang.String, int)' in 'android.content.Intent' cannot be applied to '(java.lang.String)'
Java
8 votes112 views3 answers
How to create a java txt file from programm
Java