Sometimes it’s necessary to share variables between multiple instances of an application. For example, you might want to share a database connection. Here’s how: Create an ActiveX EXE with an
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Question: How do you determine when a client has closed its socket, so that aserver can cease to wait for messages from that client? Answer: When a socket endpoint closes
Question: Does each instance of a class have its own copies of instance methodsin the same way it has its own copies of instance variables? Answer: Every time you instantiate
Question: How can I convert a class instance to a byte array and thensubsequently reconstruct the original class from the byte array? Answer: Java’s Object Serialization API allows you to