How are observer and observable used in java programming?

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What will be the output of the program? public class Test { public static void main(String args[]) { ArrayList<String> list = new ArrayList<String>(); list.add("2"); list.add("3"); list.add("4"); list.add("5"); System.out.println("size :"+list.size()); for(int i=0;i<list.size();i++) { list.remove(i); } System.out.println("size after:"+list.size()); } }

5 Answers   Rolta,

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What is basic syntax?

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Can we nested try statements in java?

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Explain the init method?

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Mention a package that is used for linked list class in java.

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What is difference between string and stringbuffer?

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Is this valid in java ? Can we instantiate interface in java?

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How do you declare a string variable?

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What is the difference between yielding and sleeping?

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Can a set contain duplicates?

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Which arithmetic operations can result in the throwing of an arithmeticexception?

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