Java   View all facts   Glossary   Help

syntactic unit > scoping unit > package > java.io

java.io
subject			fact

java.io	contains input and output classes
	has definition A package that contains input and output classes
	has specification
	is a subtopic of Example Packages
	is a subtopic of Input and Output
	is an instance of package
	must be imported when you are using file input or file output streams
package	can be imported
	can be imported by using the import statement
	defines a name space
	groups classes or interfaces by function
	has purpose to avoid naming conflicts to control access
	has purpose to group together related classes into a subsystem
	is specified by a file that begins with a package statement
	is stored as a set of class files in a directory
	see also package name
	to create you put a class in it or put an interface in it by putting a package statement at the top of the source file in which the class or interface is defined
	to import you use the import statement with the asterisk wildcard character
syntactic unit	has syntax rule bold = mandatory italic = non-terminal normal font = optional

Next package: java.lang    Up: package    Previous package: java.awt.swing