What are the 4 types of characters?

0 Answers  

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What is the effect of keeping a constructor private?

0 Answers  

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What does nullpointerexception mean?

0 Answers  

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What is the difference between method and constructor ?

3 Answers  

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Is &&= a valid Java operator?

2 Answers  

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Why wait(),notify(),notifyAll() methods defined in Object class althought we are using in only threads.

0 Answers   Mphasis,

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Why Static variable required in java?For ex,class A { static int a; int b; } Why static is required?

5 Answers   Ericsson,

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ublic class Java_Coding_Samples { public static void JavaHungr(NumberFormatException ae){ System.out.println("integer"); } public static void JavaHungry(Exception e){ System.out.println("string"); } public static void JavaHungry(ArithmeticException ae){ System.out.println("object"); } public static void main(String[] args) { JavaHungry(null); }

1 Answers  

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what is the difference between String and StringBuffer classes?

2 Answers   Infosys,

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suppose in a class there is a code like this: { Set hs=new Hashset(); hs.add(new Emp("kathy",1000)); hs.add(new Emp("kathy",2000)); } how can u avoid the above code in your class as set won't allow duplicate objects?

3 Answers  

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Is string is a data type?

0 Answers  

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What is super?

0 Answers  

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