Frequenty Asked Question

1. What are environment variables in programming?

Environment variables are a mechanism to store information that programs or scripts can access. They can be used to store information such as routes to specific directories, database connection details, and other sensitive data. Environment variables are typically accessed via a specific API or library in most programming languages. They are frequently used to configure an application’s or script’s behavior, such as letting the user to specify a different data directory or database server.

2. What are examples of environmental variables?

Environment variables in Windows systems are %path%, %programfiles%, %tmp%, and %systemroot%, among many others.

3. Why do we need environment variables in Java?

Setting some environment variables makes some things easier

In Java, Environment variables are widely used by operating systems to deliver configuration data to applications. Environment variables are key/value pairs with both the key and the value being strings, similar to properties in the Java platform.