how file append works in java code example

Example 1: file append in java

File file = new File("append.txt");
FileWriter fr = new FileWriter(file, true);
fr.write("data");
fr.close();

Example 2: file append in java

File file = new File("append.txt");
FileWriter fr = new FileWriter(file, true);
BufferedWriter br = new BufferedWriter(fr);
br.write("data");

br.close();
fr.close();