What is singleton class in ruby?


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How to create an interface?

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In the below example, what will be the output?

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Write down program for following scenario. Use java coding standard. You have array list with some words in it..we will call it as dictionary….and you have a arbitrary string containing some chars in it. You have to go through each word of dictionary and find out if that word can be constructed with the help of chars from arbitrary string given. If you find the word print it else print none.

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What is a Wrapper class?

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how to one war file class to another war file class?

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Can extern variables be initialized?

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What is the memory leak in java?

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What about member inner classes?

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What are order of precedence and associativity, and how are they used?

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How many types of JVM's (OR) Name of the JVM's which are used in Tomcat & Weblogic servers ?

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