Furthermore, environment variables with indices can be mapped to names with array syntax and indices, shown as follows:

DEMO_ENV_1 = demo.env[1]
DEMO_ENV_1_2 = demo.env[1][2]

So, the DEMO_ENV_1 environment variable can be read in the application as follows:

System.out.printf("Demo Env 1 : %s
", environment.getProperty("demo.env[1]"));