第五周
package test;
public class ass {
public static void main(String[] args) {
// TODO Auto-generated method stub
int a=1;
int sum=0;
while(a<100) {
if(a%3==0)
sum+=a;
a++;}
System.out.println(sum);}}
int sum=0;
for(int a=0;a<100;a+=3) {
sum+=a;
}
System.out.println(sum);
}
}
int sum=0;
int a=1;
do {a++;
if(a%3==0)
sum+=a;
}while(a<100);
System.out.println(sum);
}
}
for(int a=0;a<9;a++)
{if(a!=5)
System.out.println(a);
}
}
}
Scanner input=new Scanner(System.in);
System.out.println("请输入一个数");
int sum=1;
for(int b=input.nextInt();b>1;b--){
sum*=b;
}System.out.println(sum);
}}
package test;
import java.util.Scanner;
public class acc {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input=new Scanner(System.in);
System.out.println("输入学生成绩");
int s=input.nextInt();
while (s<0||s>100) {
System.out.println("输入不合法，请重新输入");
s=input.nextInt();}
System.out.println("学生的成绩是"+s);
}}
ublic static void main(String[] args) {
// TODO Auto-generated method stub
int sum=30000;
for(double a=30000,i=1;i<=9;i++) {
a=a*1.06;
sum+=a;}
System.out.println(sum);
}
}
Scanner input = new Scanner(System.in);
System.out.println("请输入一个三位数");
int s = input.nextInt();
int a = s % 10;
int b = s / 10 % 10;
int c = s / 100;
while (s != a * a * a + b * b * b + c * c * c) {
System.out.println("输入的不是水仙花数，请重新输入");
s = input.nextInt();
a = s % 10;
b = s / 10 % 10;
c = s / 100;
}
System.out.println("这个数是水仙花数，这个数是" + s);
}
}
Scanner input = new Scanner(System.in);
int sum = 0;
System.out.println("输入年");
int year = input.nextInt();
System.out.println("输入月");
int mon = input.nextInt();
System.out.println("输入日");
int day = input.nextInt();
int[] yue = new int[] { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {
for (int i = 0; i < mon - 1; i++) {
sum += yue[i];
}
} else {
for (int i = 0; i < mon - 1; i++) {
sum += yue[i];
}
sum -= 1;
}
sum += day;
System.out.println("今天是这一年的第" + sum + "天");
}
}
Scanner input = new Scanner(System.in);
System.out.println("请输入一个四位数");
int s = input.nextInt();
int dao = 0;
while (s != 0) {
int yu = s % 10;
s = s / 10;
dao *= 10;
dao += yu;
}
System.out.println(dao);
}
}
