I am getting string errors

Question

After changing my string from this:

String osver = System.getProperty("os.name");
  if (osver.contains("Mac")){
     String app = wd + "/relap5.x\"";
    } else if (osver.contains("Windows")){
     String app = "relap5.exe";
    } else if (osver.contains("linux")) {
     String app = "/relap5.x";
    }

To this:

String[] osver = {System.getProperty("os.name")};
  if (osver.contains("Mac")){
     String[] app = {wd + "/relap5.x\""};
    } else if (osver.contains("Windows")){
     String[] app = {"relap5.exe"};
    } else if (osver.contains("linux")) {
     String[] app = {"/relap5.x"};
    }

I am getting errors.

Cannot find symbol
symbol: method contains(String)
Location variable osver of type string[]

What do you want to do exactly? – akhil_mittal May 08 '15 at 16:09 — akhil_mittal, May 08 '15 at 16:09
Do you want to check for equality? – akhil_mittal May 08 '15 at 16:11 — akhil_mittal, May 08 '15 at 16:11

score 1 · Answer 1 · answered May 08 '15 at 16:09

You cannot do contains over an array. You could alternatively do this:

List<String> osver = Arrays.asList(System.getProperty("os.name"));

    if (osver.contains("Mac")) {
        String[] app = { wd + "/relap5.x\"" };
    } else if (osver.contains("Windows")) {
        String[] app = { "relap5.exe" };
    } else if (osver.contains("linux")) {
        String[] app = { "/relap5.x" };
    }

akhil_mittal · Accepted Answer · 2015-05-08T16:13:26.777

This is because Array does not contain method contains. Do you mean the following:

    String osver = System.getProperty("os.name");
    String app;
    if (osver.equals("Mac")){
        app = "wd" + "/relap5.x\"";
    } else if (osver.equals("Windows")){
        app = "relap5.exe";
    } else if (osver.equals("linux")) {
        app = "/relap5.x";
    }
    System.out.println(app);

The above code will check for equality but if you want to check for containment then use:

        String osver = System.getProperty("os.name");
        String app;
        if (osver.contains("Mac")){
            app = "wd" + "/relap5.x\"";
        } else if (osver.contains("Windows")){
            app = "relap5.exe";
        } else if (osver.contains("linux")) {
            app = "/relap5.x";
        }
        System.out.println(app);

So what is the difference between String () and String[] {}? — Brian Allison, May 08 '15 at 16:29
`String` is a single string. `String[]`is an array of strings. An array can be initialized by using `{}` — Roger Gustavsson, May 08 '15 at 16:44

I am getting string errors

2 Answers2

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