楊朝淞w3schools,Java雙迴圈,int整數,String字串,+串接,運算子operator

Java程式碼

/*楊朝淞2022/10/17w3Schools學雙迴圈,運算子operator,運算元operand*/
public class Main {
  public static void main(String[] args) {
    int i, j;                    /*宣告整數integer變數i, j*/
    String a="第", b="列:";       /*宣告整數字串a, b給初始值*/
    for ( i = 0; i < 8; i=i+1) {   /*迴圈*/
       System.out.print(a + i + b);/*+運算子用在字串,串接功能*/
       for ( j = 0; j <= i; j++)/*迴圈內僅有一道指令,可以不加{...}*/
          System.out.print(j);  /*print輸出完,下一個print在後面,*/
       System.out.println();    /*println輸出完換列line,()空的,只有換列*/
    }
   for ( i =40845; i < 40860; i ++)/*試探統一碼unicode 40845的對應字元*/
    {  a = Character.toString(i);
       System.out.println( i + " 字碼的字元是 " + a );
    }
    System.out.println("統一碼unicode涵蓋地球上所有文字,當然涵蓋傳統的ascii美國標準資訊交換碼");
  }
}

w3schools截圖Character