黑馬程式設計師——基礎知識--IO流
阿新 • • 發佈：2019-01-08
import java.io.*;
public class Test
{
public static void main(String[] args)
{
try {
String content = "Thank you for your fish.";
File file = new File("new.txt");
// create the file if doesn't exists
if (!file.exists()) {
file.createNewFile();
}
FileWriter fw