Static initaializer block & forward referencing -Question from SCJP 6 book by Khalid Mughal

[Lucky J Verma]

I have a question on static initializer block and forward referencing from khalid mughal scjp 6 book -page 411/ch 9 topic 9.9
It says in static initializer block too -follows declaration -before-use rule



As per this following example should fail .....One variable sf1 is declared ,defined and use in difference static blocks and not in order of declration-then define-then use.

public class TestClassChap3 {
   
	static{
		sf1=10;   //ok -declared later //it shouldnt wrk as its declared later...still no error
		//sf1=if1;  //not okay as non-static
		int b=sf1=20; //okay
		int c=TestClassChap3.sf1; //ok
	}
	
	static int sf1=sf2=23;
	static int sf2;
	int if1=5;
              static
              {
               int d=2  * sf1;
               int e=sf1=50;
 
               }

	public static void main(String args[]) {
		System.out.println(TestClassChap3.sf1);
		System.out.println(TestClassChap3.sf2);

		
	}
}

[Rob Spoor]

Please use code tags.