Classes in the same package are implicitly imported into source-code files of other classes in the same package.

Classes System and String are in the package java.lang

An import declaration is not required if you always refer to a class via its fully qualified class name.

We have to use the Java.lang classes by explicitly importing them.

Import declarations involve a package name followed by a dot and the class name.

When classes that are compiled in the same directory on disk are in the same package, this is known as the default package.

Press Enter to submit the string to the program.

Pressing Enter inserts a newline character at the end of the characters the user typed.

Reads individual words.

The newline character is discarded by nextLine.

Reads characters typed by the user until the newline character is encountered.

Return a string containing the characters up to, but not including the new line.