Question

JAVA 如何自动创建文本

Answer 1

public void a() {
try {
File f = new File("D:\\1.txt");
if (!f.exists()) {
f.createNewFile();
}
FileWriter fw = new FileWriter(f);
PrintWriter pw = new PrintWriter(fw);
Random random = new Random();
for(int i=0;i<100;i++){
pw.append(String.valueOf(random.nextInt(100)) + " ");
}

pw.flush();
pw.close();
} catch (Exception e) {
e.printStackTrace();
}
}