write file java
@Test
public void givenUsingJava7_whenWritingToFile_thenCorrect()
throws IOException {
String str = "Hello";
Path path = Paths.get(fileName);
byte[] strToBytes = str.getBytes();
Files.write(path, strToBytes);
String read = Files.readAllLines(path).get(0);
assertEquals(str, read);
}How do you write or read data from or to file with Java?
Read data: I can use classes bufferedReader and bufferwriter.
Lets say I have a text in Java.
I use bufferedReader to read the files if it is a random file
bufferedReader is only the functionality to read a file.
For, Excel files I use the special library, Apache POI library.
These are external libraries.
I use properties class to read the properties files.
Scanner class also for read the data from filesCopyright © 2021 Codeinu
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