JAVA Interview Questions and Answers

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Q: Which class is used to perform file input and output operations in Java?

asked May 7 in JAVA by SakshiSharma

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Q: Which class is used to format date and time values in Java?

asked May 7 in JAVA by SakshiSharma

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Q: Which class is used to represent date and time values in Java?

asked May 7 in JAVA by SakshiSharma

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Q: Which method is used to convert a stream of objects into a map in Java?

asked May 7 in JAVA by SakshiSharma

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Q: Which method is used to convert a stream of objects into a set in Java?

asked May 7 in JAVA by SakshiSharma

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Q: Which method is used to convert a stream of objects into a list in Java?

asked May 7 in JAVA by SakshiSharma

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Q: Which method is used to convert a stream of objects into an array in Java?

asked May 7 in JAVA by SakshiSharma

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Q: Which method is used to perform a reduction operation on the elements of a stream in Java?

asked May 7 in JAVA by SakshiSharma

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Q: Which method is used to concatenate the elements of a stream into a single string in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which method is used to transform elements in a stream in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which method is used to filter elements in a stream based on a given predicate in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which method is used to create a stream from a collection in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which method is used to create a stream from an array in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which interface is used to represent a function that does not return a result in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which interface is used to represent a unary operator (a function that takes one argument and returns a result of the same type) in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which interface is used to represent a binary operator (a function that takes two arguments and returns a result of the same type) in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which interface is used to represent a function that takes two arguments and returns a result in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which interface is used to represent a predicate (a function that returns a boolean value) in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which interface is used to represent a supplier of results in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which of the following is NOT a method of the Function interface in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which interface is used to define functional interfaces in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which of the following is NOT a type of method reference in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which of the following is a keyword used to define a lambda expression in Java?

asked May 5 in JAVA by sharadyadav1986

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Q: Which method is used to remove an element from an ArrayList in Java?

asked May 4 in JAVA by rahuljain1

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Q: Which method is used to add an element to the end of an ArrayList in Java?

asked May 4 in JAVA by rahuljain1

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Q: Which of the following is a data structure in Java that stores elements in a linked list?

asked May 4 in JAVA by rahuljain1

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Q: Which of the following is a data structure in Java that stores elements in a resizable array?

asked May 4 in JAVA by rahuljain1

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Q: Which of the following is a data structure in Java that stores elements in a fixed-size array?

asked May 4 in JAVA by rahuljain1

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Q: Which of the following is used to skip an iteration in a loop in Java?

asked May 4 in JAVA by rahuljain1

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Q: Which of the following is used to exit a loop in Java?

asked May 4 in JAVA by rahuljain1

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