陳映年w3school,Java,for loop,迴圈For Loop,整數int,字串String,美國資訊交換標準碼ascll,萬國碼unicode

w3schools截圖

h1{border: purple solid 10px; padding: 5px; text-aling: center;background-color: red; color: white;}

,Java,for loop,迴圈程式碼

//陳映年,2022/10/20,Java迴圈for loop
public class Main {
  public static void main(String[] args) {
  int i, j;                     /*宣告整數integer變數i*/ 
  String a="第" , b="列: ";     /*宣告字串a,b且給初始值*/
  System.out.print("陳映年,2022/10/20,Java迴圈for loop");
    for (i = 9 ; i > 0; i--) {  /*迴圈,i控制*/
      System.out.print(a+i+b);      /*系統的輸出的列印完換列printin*/
      for (j = 0; j <= i; j++)  /*j控制欄方向*/
      System.out.print(j);      /*迴圈內僅一指令可省略{...}*/
      System.out.println('.');  /*println=print line*/
      }
  }
}