Introduction to the difference between printstream and printwriter

The APIs of printstream and printwriter are almost the same, both of which can output various forms of data, and the construction methods are almost the same

Printwriter has more than one accepted writer parameter

API comparison:

So, what is the difference between them? From stackflow

The main meaning is that the functions of the two classes are basically the same. Printwriter that printstream can do can also be implemented, and the function of printwriter is more powerful. However, due to the late appearance of printwriter, the earlier system Out is implemented using printstream, so printstream is not discarded for compatibility.

The biggest difference between the two classes is that printstream uses the system default encoding format when outputting characters and converting characters into bytes. In this way, problems and uncontrollable factors will occur when data is transmitted to another platform and decoded by another encoding format. The printwriter can be used when passing in the writer

The following program shows how printstream and printwriter handle the same output destination. The program will display four characters of "simplified Chinese" on the screen:

summary

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