Java: Write to a file

Append to a file using BufferedWriter
[code language=”java”]
public static void bufferedWriter(String file, String text)
{
try{
BufferedWriter bw = new BufferedWriter(new FileWriter(file, true)); // true means append to the file
bw.write(text);
bw.close();
}catch(Exception e)
{
e.printStackTrace();
}
}
[/code]

Append to a file using PrintWriter
[code language=”java”]
public static void printWriter(String file, String text)
{
try{
PrintWriter pw = new PrintWriter(new FileWriter(file,true)); // true means append to the file
pw.write(text);
pw.close();
}catch(Exception e){
e.printStackTrace();
}
}
[/code]

Overwrite a file using PrintWriter
[code language=”java”]
public static void overwrite(String file, String[] text)
{
try{
PrintWriter pw = new PrintWriter(new FileWriter(file)); // without the true param, it overwrites the file
for(String t:text)
{
pw.write(t);
}
pw.close();
}catch(Exception e){
e.printStackTrace();
}
}
[/code]

All together.
[code language=”java”]
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.PrintWriter;

public class WriteToFile {

public static void bufferedWriter(String file, String text)
{
try{
BufferedWriter bw = new BufferedWriter(new FileWriter(file, true)); // true means append to the file
bw.write(text);
bw.close();
}catch(Exception e)
{
e.printStackTrace();
}
}

public static void printWriter(String file, String text)
{
try{
PrintWriter pw = new PrintWriter(new FileWriter(file,true)); // true means append to the file
pw.write(text);
pw.close();
}catch(Exception e){
e.printStackTrace();
}
}

public static void overwrite(String file, String[] text)
{
try{
PrintWriter pw = new PrintWriter(new FileWriter(file)); // without the true param, it overwrites the file
for(String t:text)
{
pw.write(t);
}
pw.close();
}catch(Exception e){
e.printStackTrace();
}
}

public static void main(String args[])
{
String text[]={"hey, what’s up", "Nothing much."};
for(String t: text)
{
bufferedWriter("src/basics/files/greeting.txt",t);
printWriter("src/basics/files/greeting.txt",t);
}
overwrite("src/basics/files/greeting.txt",text);
}
}
[/code]