To answer this question, you need to understand how garbage collection works in Java. Garbage collection in Java is an automatic process performed by the Java Virtual Machine (JVM) to reclaim memory occupied by objects that are no longer in use.
The correct syntax for suggesting that the JVM performs garbage collection is:
D. System.gc()
Option A) System.free() - This option is incorrect because there is no method called free() in the System class in Java.
Option B) System.setGarbageCollection() - This option is incorrect because there is no method called setGarbageCollection() in the System class in Java. The JVM handles garbage collection automatically, so there is no need to set it explicitly.
Option C) System.setGarbageCollector() - This option is incorrect because there is no method called setGarbageCollector() in the System class in Java. The JVM handles garbage collection automatically, so there is no need to set it explicitly.
Option D) System.gc() - This option is correct because System.gc() is the correct syntax to suggest that the JVM performs garbage collection. However, it is important to note that calling System.gc() does not guarantee immediate garbage collection; it is merely a suggestion to the JVM.
The correct answer is D. System.gc() because it is the correct syntax to suggest that the JVM performs garbage collection.