Java 关于finally、static

//为啥运行结果是1 0    不是 0 0呢   谁能解释下啊  
  
public class FinallyDemo {
     static int value = 0;
     static int inc() {
         return value++;
     }
  
     static int dec() {
         return value--;
     }
  
     static int getResult() {
         try {
             return inc();
          
         } finally {
             return dec();
         }
     }
      
     public static void main(String[] args) {
         System.out.println(getResult());
         System.out.println(value);
     }
  
} 

public class Null {
     public static void greet() {
         System.out.println("Hello world");
     }
      
     public static void main(String[] args) {
         Null x = null;
         x.greet();
         ((Null)x).greet();
         ((Null)null).greet();
     }
      
}
  
//请问这个代码运行结果会是什么