What are basic data types?

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How is java created?

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Given: 10. interface A { void x(); } 11. class B implements A { public void x() { } public voidy() { } } 12. class C extends B { public void x() {} } And: 20. java.util.List list = new java.util.ArrayList(); 21. list.add(new B()); 22. list.add(new C()); 23. for (A a:list) { 24. a.x(); 25. a.y();; 26. } What is the result? 1 Compilation fails because of an error in line 25. 2 The code runs with no output. 3 An exception is thrown at runtime. 4 Compilation fails because of an error in line 20.

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INTERVIEW QUESTION FOR ANDROID

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I need help please send me reply: Write a program "if given a string like 'HAT', the combination's returned should be like ATH,THA,TAH in java"?

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Difference between Primary key and unique key?

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What is string intern in java?

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extending thread class or implementing runnable interface. Which is better? : Java thread

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Can we overload final method in java?

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what is the difference between sleep() and Wait()?

10 Answers   Accenture, Amdocs,

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How do you create an array in java?

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What is the difference between compile-time polymorphism and runtime polymorphism?

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