자바(java) System Properties

System Property	Description
java.version	Java Runtime Environment version
java.vendor	Java Runtime Environment vendor
java.vendor.url	Java vendor URL
java.home	Java installation directory
java.vm.specification.version	Java Virtual Machine specification version
java.vm.specification.vendor	Java Virtual Machine specification vendor
java.vm.specification.name	Java Virtual Machine specification name
java.vm.version	Java Virtual Machine implementation version
java.vm.vendor	Java Virtual Machine implementation vendor
java.vm.name	Java Virtual Machine implementation name
java.specification.version	Java Runtime Environment specification version
java.specification.vendor	Java Runtime Environment specification vendor
java.specification.name	Java Runtime Environment specification name
java.class.version	Java class format version number
java.class.path	Java class path
java.ext.dirs	Path of extension directory or directories
os.name	Operating system name
os.arch	Operating system architecture
os.version	Operating system version
file.separator	File separator ("/" on UNIX, "\" on Windows)
path.separator	Path separator (":" on UNIX, ";" on Windows)
line.separator	Line separator ("\n" on UNIX "\r\n" on Windows)
user.name	User's account name
user.home	User's home directory
user.dir	User's current working

전체 System Property 출력하기

import java.util.Enumeration;
import java.util.Properties;

public class SystemProperties {
	public static void main(String[] args) {

		Properties prop = System.getProperties();
		Enumeration enumeration = prop.propertyNames();
		
		while(enumeration.hasMoreElements()) {
			String key = (String)enumeration.nextElement();
			String value = prop.getProperty(key.toString());
			System.out.println(key + " : " + value);
		}
	}
}