Answer Posted / john

ArrayList al = new ArrayList();

al.add("A");
al.add("B");
al.add("A");
al.add("C');

for(int i = 0; i<al.size(); i++)
System.out.println(": " + al.get(i));

if(al.contains("A"))
al.remove("A");

for(int i = 0; i<al.size(); i++)
System.out.println("- " + al.get(i));

Describe the Big-O Notation.

1040

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String class is defined under which package in java?

1074

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What class allows you to read objects directly from a stream?

1318

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Can we create a constructor in abstract class?

975

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In the below example, how many string objects are created?

1045

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What are java threads?

1123

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Explain about data types?

1077

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Why static functions are used?

1093

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What exceptions occur during serialization?

1082

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What do you mean by access modifier?

1021

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What if the main() method is declared as private? What happens when the static modifier is removed from the signature of the main() method?

1181

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How do I convert a numeric ip address like 192.18.97.39 into a hostname like java.sun.com?

1006

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What is a marker interface?

1152

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Is static a singleton?

967

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What are the advantages of java over cpp?

1069

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