Why singleton class is used in java?
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Explain public static void main(string args[]).
Can an interface be final?
What does this mean java?
You can create a string object as string str = “abc”; why cant a button object be created as button bt = “abc”;? Explain
What is the purpose of garbage collection in java, and when is it used?
What is variable explain?
Why java doesn’t support multiple inheritances?
Enlist few advantages of inheritance?
Why can't you declare a class as protected?
Difference between String and String Buffer?
Define an applet in java?
Differentiate between class and structure.