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Practice Test -Basic Java

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1. Which of the following not contain an index based structure?



2. ArrayList implements that of the following?



3. Select an invalid variable declaration in Java:



4. Which of these is the most popularly used class as a key in a HashMap?



5. What will be the final element of the array? int [ ] grades = new int[35];



6. Which of the following are not legal identifiers?



7. Javac.exe in Java Development Kit (JDK) is called:



8. LinkedList implements?



9. Which defines the common variables and methods of a set of objects?



10. TreeMap implements?



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