//SayHello.java
public class SayHello{
public void greet(){
System.out.println("Hi");
}
}
//SayBye.java
public class SayBye{
public void greet(){
System.out.println("Bye");
}
}
//SayTest
public class SayTest{
public static void main(String[] args){
SayHello sh = new SayHello();
SayBye sb = new SayBye();
sh.greet();
sb.greet();
}
}
Assuming all are in same directory and you are also
in the same directory.
Build them:
javac SayHello.java
javac SayBye.java
javac SayTest.java
Now, jar them. Still in the same directory.
jar -cf MyApp.jar *.class
Now, run it.
java -cp .;MyApp.jar SayTest
Note all these this will fail:
java -cp .;MyApp.jar MyApp
java -cp ./MyApp.jar SayTest
java -cp ./MyApp.jar MyApp
The only correct way:
java -cp .;MyApp.jar SayTest
or
java -classpath .;MyApp.jar SayTest
