public int hashCode () {
Int h=hash; 
If (h==0 & amp; & Value. The length & gt; 0 {
Char val []=value; 

for (int i=0; I & lt; Value. Length; I++) {
H=31 * h + val [I]; 
} 
Hash=h; 
} 
Return h; 
} 

 CREATE OR REPLACE FUNCTION HASH_CODE 
RETURN INT 
IS 
The BEGIN 
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
The RETURN of 111111 
END HASH_CODE;