System.getProperty()

Question

Hi all,
i am able to read the system property defined using -D in the command line.but i don't know,
how to read a property from the properties file.
what should be the exact format of the properties file.
can u pls give me a sample properties file , and can u tell the procedure for getting this.
tia,
sekar

Answer 1

I think this is what you're looking for:public class Props {
  public static void main(String [] args) throws Exception {
    System.out.println("First let's see the System properties:");
    System.getProperties().list(System.out);
    System.out.println("\nNow let's see properties from the property file 'myprops.properties':");
    java.util.Properties props = new java.util.Properties();
    props.load(new java.io.FileInputStream("myprops.properties")); // should be in try-catch
    props.list(System.out);
}Of course the properties file 'myprops.properties' would have name/value pairs.