FileWriter练习

package test.io;


import java.io.FileWriter;
import java.io.IOException;


/**
 *  
 */
public class FileWriterDemo2 { 
public static void main(String[] args) {
FileWriter fw=null;
try {
fw=new FileWriter("demo.txt");
fw.write("abcd");

} catch (IOException e) {
System.out.println(e.toString());
}finally{
try {
if(fw!=null)
fw.close();
} catch (IOException e) {
e.printStackTrace();
}
}


}


}