題目:99乘法表程式
練習目的:加強對 for 的用法
顯示結果如圖:
/**
* @param args
*/
public static void main(String[] args) {
System.out.print(" ");
for (int i = 1; i <= 9; i++) {
System.out.printf(" %d", i);
}
System.out.println();
System.out.println("--+---------------------------");
for (int i = 1; i <= 9; i++) {
System.out.printf(" %d|", i);
for (int j = 1; j <= 9; j++) {
int x = i * j;
if(x < 10){
System.out.printf(" %d ", x);
}else{
System.out.printf(" %d", x);
}
}
System.out.println();
}
}
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