導入Java . io . buffered reader;
導入Java . io . buffered writer;
import Java . io . filenotfoundexception;
導入Java . io . filereader;
導入Java . io . filewriter;
導入Java . io . io exception;
公共類Test1 {
//將數據寫入文件
公共靜態void writeToFile(字符串路徑){
嘗試{
buffered writer bw = new buffered writer(new file writer(path));
int a = 100;
int b = 200
//妳需要把塑料轉換成字符串類型。
bw . write(string . value of(a));
bw . flush();
bw . newline();
bw . flush();
bw . write(string . value of(b));
bw . flush();
bw . close();
} catch (IOException e) {
e . printstacktrace();
}
}
//打開文件並將文件內容顯示到控制臺。
公共靜態void readFile(字符串路徑){
嘗試{
buffered reader br = new buffered reader(new file reader(path));
嘗試{
String line = null
while((line = br.readLine())!= null){
system . out . println(line);
}
} catch (IOException e) {
e . printstacktrace();
}
} catch(file not found exception e){
e . printstacktrace();
}
}
公共靜態void main(String[] args) {
write to file(" d:/sample . dat ");
readFile(" d:/sample . dat ");
}
}