Simple java method problem

I have a problem with my program. I am trying to call a method from a secondary class in the main class.
Whenever I debug the Test class I only get the text output "hello, Im the Test class!" or "hello Im the TestCall Class!" when I run the TestCall class.

I want it to display either one of the two text outputs and the text "I am method showMessage from class Test!"

This is the main class

Code Java:

---

public class Test{
 
public static void main(String args[])
{
System.out.println("hello, Im the Test class!");
}
 
public void showMesage(){
System.out.println("I am method showMessage from class 
 
Test!");
}
}

---

And this is the secondary class:

Code Java:

---

public class TestCall{
 
public static void main(String args[])
{
System.out.println("hello Im the TestCall Class!");
}
 
public void run(){
Test t = new Test(); // create an instance
t.showMesage(); // use t to refer any method of class Test
}
}

---

The first code I made had no:

Code Java:

---

public static void main(String args[])
{
System.out.println("hello Im the TestCall Class!");
}

---

Then I received an error message when I tried to debug it: "Exception in thread "main" java.lang.NoSuchMethodError: main"

See Defining Methods (The Java™ Tutorials > Learning the Java Language > Classes and Objects) To call a method, you must call the method. For example, in the second to last piece of code, call run() in the main method to run that piece of code.

I tried to do it this way but it still wont work.

Main class:

Code Java:

---

public class Test
{
public static void main(String args[])
{
System.out.println("hello Im the Test Class!");
}
 
public void run(){
TestCall t = new TestCall(); // create an instance
t.showMesage(); // use t to refer any method of class Test
}
}

---

Secondary class:

Code Java:

---

public class TestCall
{
public static void main(String args[])
{
System.out.println("hello, Im the TestCall class!");
showMesage();
}
 
public static void showMesage()
{
System.out.println("I am method showMessage class 
 
TestCall!");
}
}

---

What I just did was compile the secondary class first, then i compiled the main class and ran the main class. It still wont call the method.
I'm sure I'm doing a lot wrong here....
And thanks for your reply

I'm not sure what you wish to run...both classes have a main method. Stick to a single main method and run the code from there.

Okay... So I finally got it to work. I don't know though if this is the appropriate way of doing it.
Here's my code, please tell me what you think.

Main class:

Code Java:

---

public class Test extends TestCall
{
public static void main(String args[])
{
Test nt=new Test();
TestCall t = (TestCall)nt;
t.showMesage();
}
}

---

Secondary class:

Code Java:

---

public class TestCall
{
public static void showMesage()
{
System.out.println("I am method showMessage class 
 
TestCall!");
}
}

---

There is no reason for Test to extend TestCall.

Code java:

---

public class Test {
    public static void main(String args[]) {
        TestCall t = new TestCall();
        t.showMesage();
    }
}

---

Also, the showMessage method should not be static.