I have two packages and classes First package
D:\User\java\java_programs\mypackage\A.java
package mypackage;
public class A
{
public void msg(String name)
{
System.out.println("Hello "+name);
}
public static void main (String args[])
{
System.out.println("hello User");
}
}
And There is another class B in C:\package1\B.java
package package1;
import mypackage.A;
public class B
{
public static void main (String args[])
{
A obj = new A();
obj.msg("User");
}
}
I compiled
C:\package1>javac -cp d:\User\java\java_programs\ B.java
And It created the class files for both A.java and B.java
But I cannot run my code
I tried
java -cp d:\User\java\java_programs\ package1.B
But Error
Error: Could not find or load main class package1.B
You need to read up on how the Java classpath works, for package1 your root of the classpath would be C:\. If you add C:\ to the -cp argument it will do what you need.
The command line becomes
java -cp C:\;D:\User\java\java_programs package1.B
The Java classpath consists of the root folders under which your package structures can be found. (Jar files contain the package folder structure starting from their root.)