无题,没懂

public class OutClass {   
	 static final Object object = null;
	
	public class InnerClass {   
        //???????String,??   
    	
    	//    	??
    	//static final int i ;  
    	
        static final byte b = 0;   
        static final String str = "";   
        static final long l = 0;   
        static final double d = 0;   
        static final char c = 0;   
        static final short s = 0;   
        static final boolean bool = true;   
        static final float f = 0;   
              
        //??????,???   
       // static final Object object = null; //??????   
    }   
}