?? lotteryarray.java
字號:
/**
* @version 1.0 27 Mar 1998
* @author Cay Horstmann
*/
import corejava.*;
public class LotteryArray
{ public static long lotteryOdds(int high, int number)
{ long r = 1;
int i;
for (i = 1; i <= number; i++)
{ r = r * high / i;
high--;
}
return r;
}
public static void main(String[] args)
{ int i;
int j;
final int MAX_HIGH = 10;
// allocate triangular array
long[][] odds = new long[MAX_HIGH + 1][];
for (i = 0; i <= MAX_HIGH; i++)
odds[i] = new long[i + 1];
// fill triangular array
for (i = 0; i < odds.length; i++)
for (j = 0; j < odds[i].length; j++)
odds[i][j] = lotteryOdds(i, j);
// print triangular array
for (i = 0; i < odds.length; i++)
{ for (j = 0; j < odds[i].length; j++)
Format.printf("%4d", odds[i][j]);
System.out.println();
}
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -