public class Main { //劉任昌2022.12.15公開的類別 Main 存檔時,名稱Main.java
public static void main(String[] args) {
int x = 15; //宣告整數x
for ( int i = 0; i <= x; i++ )
{
int result = sum(i); //宣告整數result,等於呼叫方法 sum
System.out.print("累加到 " + i + " 等於: " + result);
System.out.println(" 累乘到 " + i + " 等於: " + factor(i) );
}
}
public static int sum(int k) {//自訂的方法,名稱sum
if (k > 0) { //if-else條件判斷,語法同javascript
return k + sum(k - 1); //recursion重複呼叫自己sum:遞迴
} else { //最有名的應用河內塔Hanoi Tower
return 0;
}
}
public static int factor(int k) {//自訂的方法,名稱factor
if (k > 0) { //if-else條件判斷,語法同javascript
return k * factor(k - 1); //recursion重複呼叫自己sum:遞迴
} else { //最有名的應用河內塔Hanoi Tower
return 1;
}
}
}
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