public Props loadSystemProperties(final String prefix) {
		final Properties environmentProperties = System.getProperties();
		load(environmentProperties, prefix);
		return this;
	}
public Props loadSystemProperties(final String prefix) {
		final Properties environmentProperties = System.getProperties();
		load(environmentProperties, prefix);
		return this;
	}
public Props loadSystemProperties ( final String prefix ) { final Properties environmentProperties = System . getProperties ( ) ; load ( environmentProperties , prefix ) ; return this ; }
Loads system properties with given prefix.
If prefix is <code>null</code> it will not be ignored.
Loads system properties with given prefix . If prefix is <code > null< / code > it will not be ignored .