Question: If the data.dat file already exists, what will happen when the following statement is executed? FileWriter fwriter = new FileWriter ( data . dat

If the data.dat file already exists, what will happen when the following statement is executed?
FileWriter fwriter = new FileWriter("data.dat");
The new data written out will be appended to the file
An IOException will be thrown
The file will be erased and replaced with the new file
A compiler error will occur

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