Java
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  1. Can we define an enum inside a class in Java?

  2. Can we define an enum inside a method in Java?

  3. How to iterate the values of an enum using a for loop in Java?

  4. How to convert a double value into a Java String using format method?

  5. How to convert a double value into a Java String using append method?

  6. Explain the usage of the valueOf() method of the String class in Java

  7. How to convert a sub class variable into a super class type in Java?

  8. How to convert a super class variable into a sub class type in Java

  9. How to solve diamond problem using default methods in Java

  10. What is the use of default methods in Java?

  11. Can we override default methods in Java?

  12. How to solve the diamond problem using default methods in Java?

  13. Find the Intersection Point of Two Linked Lists in Java

  14. Find the Nth Ugly Number in Java

  15. Difference Between Iterator and ListIterator in Java

  16. Difference Between HashMap and TreeMap in Java

  17. Difference Between Iterator and Enumeration Interface in Java

  18. Difference Between sleep() and wait() Method in Java

  19. Difference Between HashMap and LinkedHashMap in Java

  20. Difference Between List and ArrayList in Java
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