Suppose, If you want to specify your own manifest.mf file, then go for jar cfm MyJar.jar Manifest.txt mypackage/*. The command line is still used by some network and system administrators to.
Execute bluej program from cmd code#
Typing in your program If you write a program from scratch, then you can compose your code in BlueJ. The Windows command line utility (cmd) provides you with the old MS DOS command line that was used with older computers. If you work with Linux, then either start BlueJ from the program menu, or by typing bluej at the command prompt. If you work with Windows, click on icon to start BlueJ.
e: overrides the manifest's Main-Class attribute.įinnaly, to run the generated jar file, execute below command: F:\HelloWorld\classes>java -jar HelloWorld.jar BlueJ is a graphical Java development environment. f: indicates that you want the output to go to a file rather than to stdout. c: indicates that you want to create a JAR file. WINDOWS Lab CC 103: Go to the Start Menu, select Programs (not Loyola Software), and then BlueJ. In the University Labs, use your universal ID. Last argument is the Complete path, where the java file exists. However it seems like I can only start the program from the command prompt, unless I write a batch file to do it. Then using the java command and the classes name to run the program. Then I changed the current directory I was viewing to that of the java file. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company. it explains compiler that where the class files should be created. In the end what I ended up doing was compiling it through the command prompt. Command Explanation : Line 1 : javac is the java compiler available in bin folder of the jdk. To create a executable jar of HelloWorld execute the below command from classes directory: F:\HelloWorld\classes>jar cfe HelloWorld.jar mypackage.HelloWorld mypackage/HelloWorld.classĪfter the jar command the options cfe means: Run BlueJ Create and execute a project in BlueJ Run the program from a terminal window, without BlueJ. Compile and run Java Program in Package from Command Line. To compile and get the class file in classes folder use the -d option in javac Try making another () command right below the original. 
HelloWorld.java will look like package mypackage
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