Test.java

public class Test{
    
    static String variable_alcance_global = "Esto funciona !";

     public static void main(String []args){
         
        System.out.println( variable_alcance_global );
        
        funcionPrueba();
     }
    
     public static void funcionPrueba(){
         
         System.out.println( variable_alcance_global + " de nuevo");
         
     }
}