Select the correct answerWhich of the following is/are true about packages in Java?1.Every class is part of some package2.All classes in a file are part of the same package.3.If no package is specified, the classes in the file go into a special unnamed package.4.If no package is specified, a new package is created with folder name of class and the class is put in this package.OptionsOnly 1, 2 and 4Only 1, 2 and 3Only 4Only 1 and 3
Question
Select the correct answerWhich of the following is/are true about packages in Java?1.Every class is part of some package2.All classes in a file are part of the same package.3.If no package is specified, the classes in the file go into a special unnamed package.4.If no package is specified, a new package is created with folder name of class and the class is put in this package.OptionsOnly 1, 2 and 4Only 1, 2 and 3Only 4Only 1 and 3
Solution
The correct answer is "Only 1, 2 and 3".
Here's why:
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Every class in Java is part of some package - this is true. Even if you don't explicitly define a package, Java classes belong to a default package.
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All classes in a file are part of the same package - this is also true. In Java, you can't split a single file into multiple packages.
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If no package is specified, the classes in the file go into a special unnamed package - this is true as well. The unnamed package is the default package in Java, used when no package is specified.
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If no package is specified, a new package is created with folder name of class and the class is put in this package - this is not true. Java doesn't automatically create a new package based on the folder name if no package is specified. Instead, it uses the default, unnamed package.
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