Types of import statements in Java

Can I import same package/class twice? … One can import the same package or same class multiple times . Neither compiler nor JVM complains about it. And the JVM will internally load the class only once no matter how many times you import the same class.

lang is auto-imported by every java program we write, hence all the classes in it are automatically available to us.

lang classes are always implicitly imported . This means that you do not have to import them manually (explicitly).

The import statement tells the compiler where to look for the external classes you use in your code . It needs to find them to check that you are using them correctly, calling methods that exist, passing the right arguments to them, etc. If you import java.io.