When to use the Collection Classes(HashSet, LinkedHashSet, TreeSet....etc) in real time scenario ?

1 Answers   Cap Gemini,

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In HashSet duplicates are allowed while adding to the HashSet, but while retreiving the object from HashSet is not shown the duplicate values, WHY ?

2 Answers   Cap Gemini,

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"Sun Certified Java Programmer" This is one String , we need to print SCJP, write the java code dynamically? pls reply this questions

6 Answers   Photon,

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What are maps interfaces in the java collections? : java collections

0 Answers  

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How to call the m1() method of Base class in below snippet ? class Base { public void m1() { System.out.println("Base m1 "); } public void m2() { System.out.println("Base m1 "); } } ====================== class Derived extends Base { public void m1() { System.out.println("Derived m1"); } public void m3() { System.out.println("Derived m3"); } public static void main(String[] args) { Base ob=new Derived(); ob.m1(); //System.out.println("Hello World!"+ob.m1()); } }

6 Answers   Cap Gemini, TCS,

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What are the uses of the set interfaces in the java collections? : java collections

0 Answers  

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what is the difference between checked and unchecked Exceptions?

4 Answers   CTS,

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How to use ANT?

2 Answers  

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What are the considerations to be made in case of loops in java ?

0 Answers  

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What are the different types of collections views being provided by the map interface? : java collections

0 Answers  

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What is an Ioc pattern? There are assemblies in .net for establishing this task, Whats the special in Java /j2ee technologies about IOC

2 Answers  

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What are the main classes of the list interfaces? : java collections

0 Answers  

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