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Java Local Development Environments How it Works Check Your Installation

Bummer! Hmmm. That output doesn't look right, are you sure you ran java -version?

Bummer! Hmmm. That output doesn't look right, are you sure you ran java -version?

# Paste your info below
package com.teamtreehouse;

import java.util.Set;
import java.util.TreeSet;

public class Systemizer{

    public static void main(String[] args) {
    // write your code here
        System.out.printf("This is the classpath: %s %n",
        Set<String> propNames = new TreeSet<String>(System.getProperties().stringPropertyNames());
        for (String propertyName : propNames) {
            System.out.printf("%s is %s %n",

1 Answer

I believe the challenge is asking you to go to a DOS (Windows in my cast) and type the following command java -version

and then copy the result you get to the challenge window. Here is mine

java -version
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)

if this answers your question, please mark question as answered.