Differentiate between vector and array list.
No Answer is Posted For this Question
Be the First to Post Answer
How do you escape in java?
How many bytes is a url?
What is the protected method modifier?
Can the interface be final?
How does a for loop work?
What is rule of accessibility in java?
Write a program to print fibonacci series up to count 10.
How is treeset implemented in java?
List the features of java programming language.
What is the statements?
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.
Why set do not allow duplicates in java?