Importing Packages

In a Java source file, import statements occur immediately following the package statement and before class definitions.

This is the general form of the import statement:


import pkg1[.pkg2].(classname|*);

* means including all classes under that package. For example,


import java.lang.*;

Any place you use a class name, you can use its fully qualified name, which includes its full package hierarchy.

For example, this fragment uses an import statement:


import java.util.*; 
class MyDate extends Date { 
}

The same example without the import statement looks like this:


class MyDate extends java.util.Date { 
}
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