Why const and goto are reserved keyword in java?
Answer / ravikiran(aptech mumbai)
Because final and continue already satisfies the purpose of
the both
| Is This Answer Correct ? | 3 Yes | 17 No |
Can we extend the String class?
why java not supproting multiple inheritance?
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why we r not use pointers in corejava?
They had given one progam final HashMap hm=new HashMap(); public void show() { hm.put("name",value); } in this prg here the final hashtable value can be changed in put method,its the prg run?
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 garbage collector?
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What will happen inside init() in servlet. my interviewer asked servlet lifecycle. i said "once servlet is loaded in to memory init() will be called which performs servlet initialization " . Again interview asked what values will be initialized . what is difference between init() and init(ServletConfig config).
2 Answers Infinite Computer Solutions, TCS,
What is prefix of a string?
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Explain the selection sort algorithm?