Question

write the name of the file should be imported to use of table in Java​

Answer 1

Java Write to File – 4 Ways to Write File in Java

Java provides several ways to write to file. We can use FileWriter, BufferedWriter, java 7 Files and FileOutputStream to write file in Java.

Java Write to File

Let’s have a brief look at four options we have for java write to file operation.

FileWriter: FileWriter is the simplest way to write a file in java, it provides overloaded write method to write int, byte array and String to the File. You can also write part of the String or byte array using FileWriter. FileWriter writes directly into Files and should be used only when number of writes are less.

BufferedWriter: BufferedWriter is almost similar to FileWriter but it uses internal buffer to write data into File. So if the number of write operations are more, the actual IO operations are less and performance is better. You should use BufferedWriter when number of write operations are more.

FileOutputStream: FileWriter and BufferedWriter are meant to write text to the file but when you need raw stream data to be written into file, you should use FileOutputStream to write file in java.

Files: Java 7 introduced Files utility class and we can write a file using it’s write function, internally it’s using OutputStream to write byte array into file.

Hope you got the answer.