What is rule of accessibility in java?
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What is the difference between length and length() method in java?
What is valid keyword in java?
What is return keyword in java?
What is final method in java?
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.
What is a finally block?
why String class is immutable.
what is difference between throw and throws in exception?
Write an algorithm for quick sort?
What are the disadvantages of using inner classes?
Why are functions called methods in java?
State the difference between strings and arrays.