我想將二維數組打印到我的桌面上的txt文件。重要的是,輸出的格式是用代碼表示的,因爲它代表了行和座位。我正在嘗試將二維數組打印到文件中
代碼:
package vaja15;
import java.util.*;
import java.io.PrintWriter;
import java.io.File;
import java.io.FileNotFoundException;
public class Vaja15
{
public static void main(String[] args) throws FileNotFoundException
{
System.out.println("Vnesi velikost dvorane (vrste/sedezi): ");
Scanner sc = new Scanner(System.in);
Random r = new Random();
int vrst = sc.nextInt();
int sedezev = sc.nextInt();
int [][] dvorana = new int [vrst][sedezev];
File file = new File ("C:/users/mr/desktop/dvorana.txt");
for(int i = 0; i<dvorana.length; i++)
{
System.out.println();
for (int j = 0; j<dvorana.length; j++)
{
dvorana [i][j] = r.nextInt(3);
System.out.print(dvorana[i][j]);
PrintWriter out = new PrintWriter(file);
out.println(dvorana[i][j]);
out.close();
}
}
}
}
看看[這個答案](http://stackoverflow.com/questions/30189253/need-help-解釋座位在電影院程序製作在爪哇/ 30189718#30189718) – moffeltje
酷的故事,你的問題是什麼? – tnw
只有當有新行並打開輸出流一次時纔打印新行(println)(如moffeltje所示)。這真的很簡單。 – vefthym