I’ve just started studying Java. I know I can extract a jar file with command jar xf jarname.jar But I’m confused about this [command jar x and useless new lines]jar x and new lines Enter jar x，press the Enter key. Enter TicTacToe.jar(what i want to extract sth from),press the Enter key. Nothing else happened expect generating a new line. Please
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Tag: cmd
Can I execute multiple programs from JAR in cmd?
My task is to create two simple programs with output, put them both into one jar-archive and execute programs one by one. I can do it with one program using this commands: creating jar – jar cfe <…
Get version number of a dependency from pom.xml using command line and use that version number to tag a docker image
I have a pom file. I want to read the version of the first dependency in the dependencies tag and use that version to tag our docker image. I am using this command to get the project version. mvn …
How to display the contents of a .txt file on cmd window using Java?
I am working on a project and I want to display the contents of a .txt file on the CMD window. I wrote this piece of code to open a demo.txt file on cmd but it does not work. The “path” …
In Java, how to insert multiple OS commands line?
I used the following code to execute simple OS command on Windows: public class Ping { public static void main(String[] args) throws IOException { String command = “ping google.com”; …
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