Here is my code : Why is the if ((rs.getString("order_status")) != ordstat)
not working?
String sql = "select order_id, order_dt, order_status, prod_name from orders where user_id = '"+user+"'";
try{
s = con.createStatement();
rs = s.executeQuery(sql);
String ordstat = "Pending";
%>
<%
while( rs.next() ){
if ((rs.getString("order_status")) != ordstat){
%>
<div align="center">
<table border="1" cellpadding="5">
<tr>
<th>Select</th>
<th>Order ID</th>
<th>Name</th>
<th>Date</th>
<th>Status</th>
</tr>
<tr>
<form action = 'deleteorders' >
<td><input type="checkbox"/></td>
<td><%= rs.getString("order_id") %></td>
<td><%= rs.getString("prod_name") %></td>
<td><%= rs.getString("order_dt") %></td>
<td><%= rs.getString("order_status") %></td>
<%
}
}
%>
</form>
</tr>
</table>
<br>
<INPUT TYPE=SUBMIT VALUE="CANCEL">
</div>
<%
}
Try this , as this is the recommended way of doing it
if (!(rs.getString("order_status")).equals(ordstat))
Note that == compares references of the objects and if you want to compare actual content of strings , use equals() function
In java checking for String using the equality operator ("==") means that you are effectively comparing the address of that String object in memory to another String object. It never compares the contents of the String.
To compare 2 Strings always use .equals method
String x = "Hello";
String y = "World";
if (x.equals(y)) //if the strings are equals
System.out.println("Equals");
if (!x.equals(y)) //if the strings are not equal
System.out.println("Not Equal");
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.