Java example program to get the environment variable
java get environment variable
The getenv() method of the java.lang.System
provide us the functionality to get the environment variable value. To get
the single environment variables value we have to call the getenv("environment
variable") method where environment variable is a value that we want to
evaluate. Here is the simple example of getting environment variable "WINDIR".
Here is the full code of GetEnvironmentVariable.java
as follows:
GetEnvironmentVariable.java
import java.util.*;
import java.lang.*;
public class GetEnvironmentVariable
{
public static void main(String args[]) {
try{
String environmentVariable = System.getenv("WINDIR");
System.out.print("Environment Variable are =>"+environmentVariable);
}catch (Exception e){
System.out.println("Exception caught ="+e.getMessage());
}
}
}
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Output:
C:\javaexamples>javac GetEnvironmentVariable.java
C:\javaexamples>java GetEnvironmentVariable
Environment Variable are =>C:\WINNT |
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