Update PassBook.java

programs/mutant-2/swen90006/passbook/PassBook.java

@@ -104,7 +104,7 @@ public class PassBook
 		}
 	    }
 
-	    if (!containsLowerCase || !containsUpperCase || !containsNumber) {
+	    if (!containsLowerCase && !containsUpperCase || !containsNumber) {
 		throw new WeakPassphraseException(passphrase);
 	    }
 	}