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POHaving trouble compiling a Java program, I am new to it. Can't figure out what to do with directories
 

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  1. POHaving trouble compiling a Java program, I am new to it. Can't figure out what to do with directories
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    <p>I have been searching the web trying to find the answer to my question, but everywhere I look seems to have too complex of a solution for a beginner like me. I have been working on this project, and just now realized that I should've made a package, or something like that. The thing is though, my program was working fine until I started dabbling with it, and now it won't work at all. I am getting this error:</p> <pre><code>Exception in thread "main" java.lang.NoClassDefFoundError: BubbleSort. class Caused by: java.lang.ClassNotFoundException: BubbleSort.class at java.net.URLClassLoader.findClass(URLClassLoader.java:434) at java.lang.ClassLoader.loadClass(ClassLoader.java:672) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:358) at ``java.lang.ClassLoader.loadClass(ClassLoader.java:638) Could not find the main class: BubbleSort.class. Program will exit. </code></pre> <p>Here's how my "path" looks, if I am not mistaken. I am connected to my school's Z: drive through a remote connection, and from there I have a folder called myFirstname_Lastname_A4, which then leads me to another folder called sortingzz which I believe is supposed to have only my source files, but it also ended up with my class files in there whenever I compiled. So here's what I am doing to compile.</p> <pre><code> cd myFirstname_Lastname_A4/sortingzz </code></pre> <p><code>javac *.java</code> (Works fine, this is where I end up with my Class files inside of my sortingzz folder)</p> <p><code>java *</code> (This is where I get the error)</p> <p>I am pretty sure I am just trying to run the program wrong. Before I started messing around with stuff I wasn't ready for, I used to just run the file with my main function in it, like this</p> <pre><code>javac SortingImplementation.java java SortingImplementation </code></pre> <p>And that for the most part worked fine, but I started having trouble calling certain classes from other classes, so thats when I found out I was suppose to do the packaging and importing stuff.</p> <p>In case that is the issue, I have on the top line of every source file: package sortingzz;</p> <p>and I am importing like this:</p> <p><code>import sortingzz.*</code>;</p> <p>This is correct, right?</p> <p>UPDATE:</p> <p>I decided to give up on class pathing and trying to package everything, because as usual, I am getting responses that are way over my head, and to be honest I don't think it is necessary.</p> <p>After removing package and importing from everything, and once again compiling using javac *., it actually compiles this time. However whenever I try to run my class with the main in it, SortingImplementation, it tells me that</p> <pre><code>Could not find the main class: SortingImplementation. Program will exit. </code></pre> <p>I don't get it, I am looking at the SortingImplementation.class right now, with all the other classes and java files, so I am not sure what it's trying to do.</p>
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    1. COYou need to point to the directory where the package is using `-cp` flag
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      1. POHaving trouble compiling a Java program, I am new to it. Can't figure out what to do with directories
      1. USLittle Child
 

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