Match each Java keyword to its use.
Drag a concept onto its matching description — or click a concept then click the description.
Prevents modification: variable constant, method override, class inheritance
Belongs to the class rather than instances
Cannot be instantiated; used for classes and methods
Ensures mutual exclusion in multithreading
Marks field to be ignored during serialization
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
static: Belongs to the class rather than instances
Keywords in Java have specific meanings. Static members are class-level, final prevents modification, abstract requires subclassing, and synchronized controls thread access. Distractors confuse static with final.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
static: Belongs to the class rather than instances
Why this is correct
Static members are class-level and shared across all instances.
final: Prevents further modification (class, method, variable)
Why this is correct
A final class cannot be subclassed, a final method cannot be overridden, and a final variable is a constant.
abstract: Cannot be instantiated; must be subclassed
Why this is correct
Abstract classes provide a base for subclasses and cannot be used to create objects directly.
synchronized: Ensures only one thread accesses a block/method at a time
Why this is correct
Synchronized prevents race conditions by locking the resource for the executing thread.
static: Declares a method that cannot be overridden
Why it's wrong here
Incorrect — this describes 'final' for methods, not 'static'.
final: Belongs to the class rather than instances
Why it's wrong here
Incorrect — this describes 'static', not 'final'.
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