小编Dav*_*her的帖子

我在编译代码时收到一条消息:

Note: H:\Project2\MyGui2.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

我该如何重新编译-Xlint:unchecked？

有人能告诉我这段代码有什么问题.我的目标是编写一个传递员工姓名的程序,将员工表中的所有姓名和工资加载到VARRAY中,然后在屏幕上打印出姓名和工资.

CREATE OR REPLACE PROCEDURE VARRAY_Q2 
(
  PNAME IN VARCHAR2  
, PSAL OUT NUMBER  
) AS 

--declare and create cursor

CURSOR emp_cur IS
SELECT ename,sal
FROM EMP;

  TYPE varray_emp IS VARRAY(14) OF emp_Cur%ROWTYPE;

  --Creating new instance of varray
  x_varray_emp varray_emp := varray_emp();
  v_counter NUMBER := 0;

BEGIN

  x_varray_emp.EXTEND;

  FOR empRecs IN emp_Cur LOOP

  --Insert data into the varray
  x_varray_emp(v_counter) := empRecs;

  dbms_output.put_line(v_counter);

  v_counter := v_counter + 1;
  END LOOP;

  --Loop through the varray and print out all the elements
  FOR …