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16 lines
461 B
16 lines
461 B
import java.util.Map; |
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import java.util.TreeSet; |
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public class GetEnv { |
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/** |
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* let's test generics |
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* @param args the command line arguments |
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*/ |
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public static void main(String[] args) { |
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// get a map of environment variables |
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Map<String, String> env = System.getenv(); |
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// build a sorted set out of the keys and iterate |
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for(String k: new TreeSet<String>(env.keySet())) { |
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System.out.printf("%s = %s\n", k, env.get(k)); |
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} |
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} }
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