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May 13, 1997

Data input

Question: I need to pass some data from the user to my applet (or application) which is to be entered from the keyboard, using TextField.The data is repetitive (it fills

Unknown EDBEngineError

Question: I am getting an usual message from exception class EDBEngineError. The message is simply: “At beginning of table.”What does that mean? I am building a TQuery SQL property in

JDK1.1 and Web browsers

Question: Do the changes made in the 1.1 API mean that if one wanted to write applets for the Web, one would have to use a previous version of the

Record locking (Delphi 2 Paradox 5)

Question: We are trying to write a multi-user Delphi 2.0 app (with Paradox 5.0 tables), and are looking for a way to determine if a record is locked by another

Screen resolution

Question: I am developing an application in Delphi 2.0 on a 1024×768 resolution (large fonts), and have been trying to get it to act properly in 800×600 mode with little

Threads

Question: I recently took Sun’s Certified Java Programmers Exam and I ran into a few questions from the exam I’d like to ask you.What is the difference between >> and

Java Strings: Mutable or immutable?

Question: I don’t understand why it is said that Strings are immutable in Java. Here is a small piece of code which shows that Strings are in fact mutable:class TestStringStuff{public