学习java

9 x 9乘法表
public class asda {
public static void cheng(int n){
int i=0, j=0;
for (i=1;i<=n;i++) {
for (j=1; j<=i;j++) {
System.out.print(j+""+i+"="+(ij)+"\t");
}
System.out.println();
}
}
public static void main(String[] args) {
cheng(9);
}
}
2.递归实现10!
public class asda {
public static void main(String[] args){
System.out.println(ride(10));
}
public static int ride(int num){
if(num==1)
return 1;
else{
return num*ride(num-1);
}
}
}