write to a file java code example
Example 1: writing to a file in java
import java.io.FileWriter;
import java.io.IOException;
public class WriteToFile {
public static void main(String[] args) {
try {
FileWriter myWriter = new FileWriter("filename.txt");
myWriter.write("Files in Java might be tricky, but it is fun enough!");
myWriter.close();
System.out.println("Successfully wrote to the file.");
} catch (IOException e) {
System.out.println("An error occurred.");
e.printStackTrace();
}
}
}
Example 2: Java program to write to text file
import java.io.FileNotFoundException;
import java.io.PrintWriter;
public class WriteIntoTextFile
{
public static void main(String[] args)
{
try
{
FileWriter fw = new FileWriter("B:\\demo.txt");
fw.write("Hello World");
fw.close();
}
catch(Exception ex)
{
System.out.println(ex);
}
System.out.println("Successful");
}
}
Example 3: 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);
}
Example 4: java write to file
PrintWriter writer = new PrintWriter("the-file-name.txt", "UTF-8");
writer.println("The first line");
writer.println("The second line");
writer.close();