JAVA Management package

Management package in java consists of classes that has managed beans for environment of JAVA in the system. The following is a small example of what this Management package can do:


import java.lang.management.ManagementFactory;
import java.lang.management.OperatingSystemMXBean;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;


public class Toworld {
        public static void main(String args[]){
            OperatingSystemMXBean os =  ManagementFactory.getOperatingSystemMXBean();
            Method[] methods = OperatingSystemMXBean.class.getDeclaredMethods();
            for( int nMethodCntr = 0; nMethodCntr < methods.length ; nMethodCntr++ )
            {
                Method method = methods[nMethodCntr];
                try
                {
                    System.out.println(method.getName()+": "+method.invoke(os));                 
                }
                catch( IllegalArgumentException e )
                {
                    e.printStackTrace();
                }
                catch( IllegalAccessException e )
                {
                    e.printStackTrace();
                }
                catch( InvocationTargetException e )
                {
                    e.printStackTrace();
                }
            }
           
    }
}

The following will be the output:

getName: Linux
getAvailableProcessors: 4
getArch: amd64
getVersion: 3.6.11-4.fc16.x86_64
getSystemLoadAverage: 0.25