markdown
#說明
這篇是Java 簡易遞迴運算
#操作流程
##code
```
package recursuve;
import java.io.*;
class Computer{
int recursive(int x) {
if (x<1) {
return 1;
}
else {
return x*recursive(x-1);
}
}
}
public class recursive {
public static void main (String[] argv )throws IOException{
Computer a= new Computer();
System.out.print("please input x\n->");
BufferedReader br =new
BufferedReader(new InputStreamReader (System.in));
int x= java.lang.Integer.parseInt(br.readLine());
System.out.println("X! = " +a.recursive(x));
}
}
```
##Demo
code
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