Which 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 3Only 4Only 1 and 3Only 1, 2 and 4
Question
Which 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 3Only 4Only 1 and 3Only 1, 2 and 4
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. If you do not specify a package, Java will put the class into 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. As mentioned above, if you do not specify a package, Java will put the class into a default package.
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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 does not automatically create a new package with the folder name of the class if no package is specified. Instead, it uses the default package.
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