Variables in SQL statements

Can I use a java variable in an SQL statement written in a java program?

I am trying to have user input for my java program which takes input variables from a user and inserts them into my postgresql database.

The problem is that at the moment I get an attribute not found error. Below is a snippit of the code:

...<<buffreredReader code here...>>...
String name = tKeyboard.readLine();
st.executeUpdate("INSERT INTO TEST13 " + "VALUES (name)");

The program compiles ok, but when run the program says attribute 'name' not found under SQL Exception.

Any help is much appreciated.

Kind Regards

Sarwar