第四个Java程序

package hello;

public class text13 {
    public static void main(String[] args) {
        double i=0.1;
        int sun=0;
        while (i<8844430){
            i=i*2;
            sun++;
        }

        System.out.println(sun);
    }
}

package hello;

import java.util.Scanner;

public class text14 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("输入要检查查的整数：");
        int input = sc.nextInt();
        int tem = input;
        int sum = 0;
        while (input != 0) {
            int ge = input % 10;
            input = input / 10;
            sum = sum * 10 + ge;

        }
        System.out.println(sum);
        System.out.println(tem == sum);
    }
}

package hello;

import java.util.Scanner;

public class text15 {
    public static void main(String[] args) {
        System.out.println("输入除数和被除数：");
        Scanner sc =new Scanner(System.in);
        int chu= sc.nextInt();
        int bei= sc.nextInt();
        int shang=0;
        while(chu>bei){
            chu=chu-bei;
            shang++;

        }
        System.out.println("商为："+shang+"余数为："+chu);
    }
}