black girls bending over

Querying Environment Variables by Ibrahim

On the Java platform, an application uses System.getEnv to retrieve environment variable values. Without an argument, getEnv returns a read-only instance of java.util.Map, where the map keys are the environment variable names, and the map values are the environment variable values. This is demonstrated in the EnvMap example:

import java.util.Map;

public class EnvMap {public class Env {
    public static void main (String[] args) {
        for (String env: args) {
            String value = System.getenv(env);
            if (value != null) {
                System.out.format("%s=%s%n",
                                  env, value);
            } else {
                System.out.format("%s is"
                    + " not assigned.%n", env);
            }
        }
    }
}

    public static void main (String[] args) {
        Map<String, String> env = System.getenv();
        for (String envName 

: env.keySet()) {
            System.out.format("%s=%s%n",
                              envName,
                              env.get(envName));
        }
    }

javascript source code:
}