Q. What is the significance of Matcher class for regular expression in java?

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Q. Object of which class is used to compile regular expression?

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Q. Which capturing group can represent the entire expression?

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Q. groupCount reports a total number of Capturing groups.

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Q. Which of the following matches nonword character using regular expression in java?

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Q. Which of the following matches end of the string using regular expression in java?

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Q. What does public int end(int group) return?

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Q. What does public String replaceAll(string replace) do?

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Q. What does public int start() return?

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Q. Which of the following is not introduced with Java 8?

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Q. What is the purpose of BooleanSupplier function interface?

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Q. What is the return type of lambda expression?

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Q. Which is the new method introduced in java 8 to iterate over a collection?

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Q. What are the two types of Streams offered by java 8?

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Q. Which method is used to create a directory with fileattributes?

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Q. Which method can be used to check fileAccessiblity?

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Q. How can we delete all files in a directory?

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Q. How to copy the file from one location to other?

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Q. How can we get the size of specified file?

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Q. How to read entire file in one line using java 8?

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