Core Java Interviewfragen und Antworten
Question: What is java.lang package in Core java?Answer:For writing any java program, the most commonly required classes & interfaces are defined in a separate package called java.lang package. This package is by default available for every java program, no import statement is required to include this package. Few Examples: java.lang.Object java.lang.Class java.lang.String |
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Am hilfreichsten laut Nutzern:
- How could Java classes direct program messages to the system console, but error messages, say to a file?
- What are the differences between an interface and an abstract class?
- Why would you use a synchronized block vs. synchronized method?
- How can you force garbage collection?
- What are the differences between the methods sleep() and wait()?