Java System getProperties() Method

The getProperties() method of Java System class returns the properties of current system. If there is no current set of system property, a set of system properties is first created and initialized.

This system property set includes value for the following keys:

Key	Description of Associated Value
java.version	Java Runtime Environment version which may be interpreted as a Runtime.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 which may be interpreted as a Runtime.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 which may be interpreted as a Runtime.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 which may be interpreted as a Runtime.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.library.path	List of paths to search when loading libraries
java.io.tmpdir	Default temp file path
java.compiler	Name of JIT compiler to use
os.name	Operating system name
os.arch	Operating system architecture
os.version	Operating system version
file.separator	File separator ("/" on UNIX)
path.separator	Path separator (":" on UNIX)
line.separator	Line separator ("\n" on UNIX)
user.name	User's account name
user.home	User's home directory
user.dir	User's current working directory

Syntax

Returns

This method will return the system properties.

Exception

It will return SecutityException, if security manager exist its checkPropertiesAccess method doesn't allow access to the system properties.

Example 1

import java.util.Properties;

public class SystemGetPropertiesExample1 {

	public static void main(String[] args) {
		System.out.println("Your System propertyfor operating system");
		Properties p = System.getProperties();
System.out.println(p.getProperty("os.name")); //property to get Operating system name
System.out.println(p.getProperty("os.arch")); //property to get Operating system architecture
System.out.println(p.getProperty("os.version")); //property to get Operating system version
	}

}

Test it Now

Output:

Your System propertyfor operating system
Windows 8
amd64
6.2

Example 2

import java.util.Properties;

public class SystemGetPropertiesExample2 {

	public static void main(String[] args) {
		System.out.println("Your System property for user");
		Properties p = System.getProperties();
System.out.println(p.getProperty("user.name")); //property to get User's account name
System.out.println(p.getProperty("user.home")); //property to get User's home directory
System.out.println(p.getProperty("user.dir")); //property to get User's current working directory
	}
}

Test it Now

Output:

Your System property for user
shubham
C:\Users\Shubham Jadon
C:\Users\Shubham Jadon\eclipse-workspace\tpoint

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Java System Class