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I’m learning about socket programming in Java. I’ve seen client/server app examples with some using DataOutputStream, and some using ObjectOutputStream.
What’s the difference between the two?
Is there a performance difference?
DataInput/OutputStream performs generally better because its much simpler. It can only read/write primtive types and Strings.
ObjectInput/OutputStream can read/write any object type was well as primitives. It is less efficient but much easier to use if you want to send complex data.
I would assume that the Object*Stream is the best choice until you know that its performance is an issue.