KwickClips Java · 41 sec · free
Is String a primitive type?
Short answer. No. String is a reference type.
Can an int be null?
No. Only reference variables can be null.
Primitive vs reference
| Point | Primitive | Reference |
|---|---|---|
| Holds | value | address |
| Example | int | String |
| null? | no | yes |
Remember
| String, arrays: reference |
| Reference can be null |
String is used everywhere. But is it a primitive? No. Here is the difference. A primitive holds the value. A reference holds an address. Only references can be null. String and arrays are references. References can be null.
This clip is from the full lesson: Data Types, Variables and Constants in Java — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 11 Information Technology (802), ICSE Class 9 Computer Applications, ICSE Class 9 Computer Applications, ICSE Class 10 Computer Applications
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