CODEWITHSUNDEEP
javaruntimeexecutable
lamCM
lamCM

Reputation: 147

Executing Runtime.getRuntime().exec() with space between its arguements

Good day to all experts,

Hope to have some advice on this trivial issue of mine.

I am trying to execute the following syntax while passing the arguments testcase1,testdata1 and testresult to jar_filepath,tc,test_data and test_result respectively

Runtime.getRuntime().exec("cmd /c start cmd /k java -jar "+jar_filepath + tc + test_data + test_result);

However, upon execution, there was an error as follow: Error: Unable to access jarfile C:\TestAutomation\Jar\Test1.jartestcase1testdata1testresult2 where all the arguments' space is not applied.

Hope to have advice on the proper way to write the code for execution at the exec() level.

Thank you in advance.

Upvotes: 1

Views: 597

Answers (1)

Jorn Vernee
Jorn Vernee

Reputation: 33905

Your way does not add spaces before the arguments. That would look like this:

Runtime.getRuntime().exec("cmd /c start cmd /k java -jar "
    + jar_filepath + " " + tc + " " + test_data + " " + test_result);

But if you use a String[] this is done automatically:

String[] command = {
    "cmd /c start",
    "cmd /k java -jar " + jar_filepath,
    tc,
    test_data,
    test_result
};

Runtime.getRuntime().exec(comand);

Upvotes: 1

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