This code snippet will compile and run as given below:

public class TooSmartClass {
   public static void main(String[] args) {
    int weight = 10, thePrice;                         // Local
variables
      // int weight = 10, thePrice = 0;                     // Local
variables

       if (weight <  10) thePrice = 1000;
       if (weight >  50) thePrice = 5000;
       if (weight >= 10) thePrice = weight*10;            // Always
executed.
      // System.out.println("The price is: " + thePrice);   // (1)
   }
}

But will not compile as given below:

public class TooSmartClass {
   public static void main(String[] args) {
    int weight = 10, thePrice;                         // Local
variables
      // int weight = 10, thePrice = 0;                     // Local
variables

       if (weight <  10) thePrice = 1000;
       if (weight >  50) thePrice = 5000;
       if (weight >= 10) thePrice = weight*10;            // Always
executed.
         System.out.println("The price is: " + thePrice);   // (1)
   }
}

Error : C:\Java Files>javac TooSmartClass.java
TooSmartClass.java:10: variable thePrice might not have been
initialized
       System.out.println("The price is: " + thePrice);   // (1)
                                             ^
1 error

Why so ?? Because thePrice is not initialized in both the scenarios !

Thanks,
Ankur