Fix Hardcoded Windows Paths in Java so that it works in linux also

Question

I have a java file that has some hard-coded path something like:

public class ReportBuilder
{
  private static final String DIRECTORY = "META-INF";
  private static final String REPORT_HTML = "report.html";

  public static void createHTMLReport(String projectPath, String artifactName, ValidationResult result) throws MojoExecutionException {
    String directoryPath = projectPath + "\\" + "META-INF";
    String filePath = directoryPath + "\\" + "report.html";
  }
}

Linux its creating META-INF with a \ and that is causing the build to fail.

How can I switch this to OS independent so that when the same is run on Linux it creates META-INF with correct path?

Possible duplicate of [Platform independent paths in Java](https://stackoverflow.com/q/3548775/608639), [How to load files on multiple platforms properly using Java?](https://stackoverflow.com/q/10594316/608639), [File path names for Windows and Linux](https://stackoverflow.com/q/20979625/608639), [Difference between File.separator and slash in paths](https://stackoverflow.com/q/2417485/608639), etc. — jww, Jul 29 '19 at 23:44

score 2 · Accepted Answer · answered Jul 29 '19 at 22:41

Instead of hardcoding separator \ or /, use File.separator

String filePath = directoryPath + File.separator + "report.html";

or event better do not use path literals at all but create Path object like

Path filePath = Paths.get(directoryPath, "report.html");

such Path object you can pass to the File constructor/utils but also you can always take String value of the path by calling toString() on the instance

Fix Hardcoded Windows Paths in Java so that it works in linux also

1 Answers1