劉哲瑋w3schools,Java,迴圈,For Loop,整數int,字串String,美國資訊交換標準碼ascii,萬國碼unicode

w3schools截圖

//劉哲瑋,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: ";
    System.out.println("劉哲瑋,2022/10/20,Java迴圈for loop");
    for (i = 9 ; i > 0; i--) {  /*迴圈,控制*/               System.out.print(a+i+b);  /*系統的輸出的列印完換列println*/
       for(j = 0; j <= i; j++)
       System.out.print(j);
     System.out.println('-');
    }  
  }
}



w3schools學習Java,Character.toString將數字轉成萬國碼unicode
Character.toString將數字轉成萬國碼unicode
//劉哲瑋,2022/10/20,Java迴圈for loop
public class Main {
  public static void main(String[] args) {/*curly捲bracket*/
    int i,j;                     /*宣告整數integer變數i*/
    String a="第",b="列: ";
    System.out.println("劉哲瑋,2022/10/20,Java迴圈for loop");
    for (i = 9 ; i > 0; i--) {  /*迴圈,控制*/               System.out.print(a+i+b);        /*系統的輸出的列印完換列println*/
       for(j = 0; j <= i; j++)
       System.out.print(j);
     System.out.println('-');
    }
    for (i = 40845; i < 40860; i++){
       a = Character.toString(i);  /*字元的.方法toString轉成字串*/
       b = "字碼的字元: ";
       System.out.println(i + b + a);
  }
}