Can a singleton class be inherited?
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What is the implementation of destroy method in java. Is it native or java code?
Is string is a data type in java?
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Interface A { String test(); } Interface B { int test(); } Create a class AB which must implements both A & B interfaces.
1.IN CASE OF DYNAMIC METHOD DISPATCH WHY WE USE REFERENCE VARIABLE,WE CAN USE THE DIFFERENT DEFINED OBJECT DIRECTLY TO ACCESS THE DATA MEMBER AND MEMBER FUNCTION OF THAT RESPECTIVE CLASS?WHAT IS THE MAIN FUNCTION OF "REFERENCE VARIABLE" HERE?
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What was java originally called?