I have no experience with Scala, so this question may be elementary. I am trying to use Scala class from within Java, based on the "Person" example in this tutorial: http://www.codecommit.com/blog/java/interop-between-java-and-scala
I create two source files, one Scala and one Java, as follows.
Person.scala:
class Person {
def getName() = "Daniel Spiewak"
}
Test.java:
public class Test {
public static void main(String[] args) {
Person p = new Person();
p.getName();
}
}
I can compile (with a warning I don't understand), but I get a ClassNotFoundException when I try to run the program.
$ scalac Person.scala $ javac Test.java ./Person.class: warning: Cannot find annotation method 'bytes()' in type 'ScalaSignature': class file for scala.reflect.ScalaSignature not found 1 warning $ java Test Exception in thread "main" java.lang.NoClassDefFoundError: scala/ScalaObject at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:787) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:447) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at Test.main(Test.java:3) Caused by: java.lang.ClassNotFoundException: scala.ScalaObject at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 13 more
Any idea what I'm doing wrong?
C:\Users\user1\Desktop>java -cp .:scala-library-2.11.8.jar Test Error: Could not find or load main class Test
– rinuthomaz