java call method from main class code example

Example 1: run a java class without main method

//This is prior to Java 7
class StaticInitializationBlock{
   static{
      System.out.println("class without a main method");
      System.exit(0);
   }
}

Example 2: can i call another function from main hava

package learningjava;

public class helloworld {
    public static void main(String[] args) {
        new helloworld().go();
        // OR
        helloworld.get();
    }

    public void go(){
        System.out.println("Hello World");
    }
    public static void get(){
        System.out.println("Hello World, Again");
    }
}