徐子詮2022/10/21學習迴圈for loop利用挪威w3schools

/*徐子詮2022/10/21學習迴圈for loop利用挪威w3schools*/ public class Main { /*類別名稱Main存檔的檔名必須Main.java*/ public static void main(String[] args) { int i, j, k=12; /*宣告整數integer, i*/ String a="第", b="列: "; /*宣告整數字串 */ for (i = k; i > 0; i--) { System.out.print( a + i + b); /*+用於字串變數,串接,相當於excel的*/ for (j=1; j<=i; j++) System.out.print(j+" "); /*語法syntax錯誤,邏輯logic錯誤*/ System.out.println(); /*println=print line印完到下一列*/ } } }

/*捲括號curly bracket{ }*/ a = " 字碼是字元 "; System.out.println(49 + a + Character.toString(48)); System.out.println(65 + a + Character.toString(65)); System.out.println(97 + a + Character.toString(97)); System.out.println(122 + a + Character.toString(122)); System.out.println("傳統ascii只到127,字碼系統再擴展到所有文字unicode系統"); for ( i = 40845; i < 40860; i++){ b = Character.toString(i); System.out.println(i + a + b); } } }