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用jAvA编写程序求n!

import java.util.Scanner;public class Text{ public static void main(String args[]){ System.out.println("请输入n"); Scanner sc = new Scanner(System.in); int n= sc.nextInt(); int t=1; int i=1; while(i

import java.util.Scanner; //递归法求阶乘,eclipse编译通过 public class Test { public static void main(String srag[]){ int num = 0; while(true){ System.out.println("请输入一个正整数:"); Scanner sc = new Scanner(System.in); num = ...

import java.awt.*; import java.awt.event.*; class MyDow extends Frame implements ActionListener{ private Label lName,lPassword; private TextField tName,tPassword; private Button login,rest,exitout; private Label login_clew; pri...

public static void main(String[] args){ System.out.println("输入n,按回车:"); Scanner s = new Scanner(System.in); Integer n = Integer.parseInt(s.next()); Integer re = factorial(1, n); System.out.println(re); } public static I...

import java.util.Scanner; public class KnownTest { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("输入一个数字"); int n = sc.nextInt(); System.out.println("结果是:"+f(n)); } p...

public static BigInteger jiecheng(int n) {BigInteger bi = new BigInteger("1");while(n > 1) {bi = bi.multiply(new BigInteger(n + ""));n = n - 1;}return bi;}足够你算100以内的任何数的阶乘了

嘻嘻 ===================================== //for循环 打印1~n间的所有质数 import java.util.Scanner; public class ForExec2是质数{ public static void main(String[] args){ System.out.println("======》打印1~n间的所有质数《======")...

接口:FactorialImp 抽象类:FactorialAbs 实现计算阶乘n!的类:Fatorial 代码: /** * * 阶乘计算器 * * 接口 */public interface FactorialImp {// 计算阶乘n!的值long factorial(int n);}/** * * 阶乘计算器 * * 抽象类 继承 FactorialImp *...

import java.util.Scanner; /* * 用java编写程序计算x的n次幂 * */ public class Test40003 { public static void main(String[] args) { int repeat;//定义要幂次 //int i, n; double x, mypow=1; Scanner in=new Scanner(System.in);//从控制...

import java.util.Scanner;public class MyNum {private static Scanner input = new Scanner(System.in);public static void main(String[] args){int number,flag=0;int i=2;System.out.print("\nInput your number: ");number=input.nextInt(...

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