package Gank;
public class ClassH1 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int sum=0;
for (int i = 1; i <= 100; i++) {
if (i%10==3||i==3) {
continue;
}
sum+=i;
}
System.out.println(sum);
}
}
package Gank;
public class ClassH2 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
for (int i = 1; i <= 4; i++) {
for (int j = 1; j <=4-i; j++) {
System.out.print(" ");
}
for (int k = 1; k <=2*i-1; k++) {
System.out.print("*");
}
System.out.println();
}
}
}
package Gank;
public class ClassH3 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
for (int i = 0; i <= 4; i++) {
for (int j = 1; j <=5-i; j++) {
System.out.print("*");
}
System.out.println();
}
}
}
package Gank;
import java.util.Scanner;
public class ClassH4 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input=new Scanner(System.in);
for (;;) {
System.out.println("请输入学生姓名");
String name=input.next();
if(name.equals("Q")){
System.out.println("程序结束");
break;
}
}
}
}
package Gank;
import java.util.Scanner;
public class ClassH5 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input=new Scanner(System.in);
int sum=0;
for (int i = 0; i < 5; i++) {
System.out.println("请输入学生成绩");
int score=input.nextInt();
if (score<0||score>100) {
i--;
System.out.println("输入错误请重新输入");
continue;
}
sum+=score;
}
System.out.println("输入成功"+"\t"+"成绩总和为"+sum);
}
}
package Gank;
public class ClassH6 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
double sum=0;
double a=1;
for (int i = 1; i <= 10; i++) {
sum+=i;
a=a+(1/sum);
}
System.out.println(a);
}
}
package Gank;
import java.util.Random;
import java.util.Scanner;
public class ClassH7 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input=new Scanner(System.in);
Random r=new Random();
int a=r.nextInt(100);
for (;;) {
int b=input.nextInt();
if(b>a){
System.out.println("猜一个数字");
System.out.println("大了点");
}
if (b<a) {
System.out.println("小了点");
}
if (b==a) {
System.out.println("猜对了");break;
}
}
}
}
package Gank;
import java.util.Scanner;
public class ClassH8 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input=new Scanner(System.in);
int num=input.nextInt();
int t = 0;
for (int i = 1; i <= num; i++) {
if(num%i==0)
t++;
}
if(t==2)
System.out.println("质数");
else
System.out.println("不是质数");
}
}
package Home4;
public class Home4 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int a=1,b=1,k=0;
for (int i = 1; i < 19; i++) {
k=b+a;
b=a;
a=k;
}
System.out.println(k);
}
}
