KwickClips Java · 40 sec · free
Why does this not compile?
Short answer. A static method has no object, so it cannot reference an instance variable directly.
What can an instance method use?
Both static and instance members, directly.
Remember
| static uses static directly |
| Instance methods use both |
Non-static variable cannot be referenced. Seen this error? Show is static, so no object is involved. Whose marks should it use? Java cannot tell, so it refuses. Static code uses static members directly. Instance methods can use both.
This clip is from the full lesson: Static Members: Class Variables and Class Methods — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: ICSE Class 10 Computer Applications, ISC Class 11 Computer Science (868), ISC Class 12 Computer Science (868), ISC Class 12 Computer Science (868)
More KwickClips from this lesson
How many copies does a static variable have?40 sec
Can you call a method without an object?37 sec
Should marks be static?44 secDisclaimer. KwickAcademy is free study material for general learning and revision. Parts of it, including the voice-over, are produced with the help of AI tools and may contain errors; if you spot one, please tell us and we will correct it. Syllabus, marks and exam details follow the latest official board publications available to us, and boards can change them at any time, so always confirm against your board's official website and your school. Using this material does not guarantee any marks or result. Board names and trademarks belong to their owners; Kwickprep is not affiliated with or endorsed by any examination board. We never ask for passwords, OTPs or ID numbers. Your progress is saved only in this browser. Full disclaimer · Privacy