What is the system getProperties() method in Java?

The static function getProperties() is used to read the system properties. It also defines the recent system properties. The recent set of properties will be returned as the property’s object. If there is no recent set, the set of properties will be created and initialized. These properties also contain the values for the keys. Let’s discuss some of these keys.

Syntax

public static Properties getProperties()

Parameters

NA: It does not take any arguments.

Return Value

This function will return the system properties.

It returns an instance of the Properties class.

The java.util.Properties class object contains key and value pair. Both these values are String type.

Example

The code regarding the getProperties() is shown below:

import java.lang.*;
import java.util.Properties;
// Main Class
public class EdPresso {
	public static void main(String[] args) {
		/* Using the getProperties() function
			System class refers to the Java Virtual Machine that you are using to compile the java code.
			the getProperties function finds the exact properties
			that Java virtual Machine on your system attains from your OS
		*/
		System.out.println("Here is the the JVM info regarding your OS :");
		System.out.println();
		// it is Property Object
		Properties JVM1 = System.getProperties();
		JVM1.list(System.out);
	}
}

Keys	Details
`version of`	the version of java virtual machine JVM.
`os.version`	version of operating system.
`path.separator`	directory or path delimiter.
`java.compiler`	java compiler name which is being used.
`file.separator`	file delimiter.
`java.home`	java home installation directory.
`os.name`	name of operating system.
`java.vm.version`	java virtual machine vendor info.
`java.vm.url`	URL for vendor web resources.
`java.runtime.name`	runtime environment name

What is the system getProperties() method in Java?

Keys and Details

Syntax

Parameters

Return Value

Example