import java.awt.*;
import java.util.Scanner;
public class day_02 {
public static void main(String[] args) {
test1();
test2();
test3();
test4();
test5();
test6();
test7();
test8();
test9();
test10();
test11();
test12();
test13();
test14();
test15();
test16();
test17();
test18();
test19();
test20();
test21();
}
public static void test1(){
int i=1;
while(i<=5){
System.out.println("Hello,World!");
}
}
public static void test2(){
int i=1;
int sum=0;
while(i<=100){
System.out.println(i);
sum+=i;
i++;
}
System.out.println(sum);
}
public static void test3(){
int i=1;
while(i<=9){
System.out.println(i+"*9="+(i*9)+"\t");
i++;
}
}
public static void test4(){
int random=(int)(Math.random()*1000+1);
System.out.println(random);
Scanner scanner=new Scanner(System.in);
while(true){
System.out.println("guess!");
int num=scanner.nextInt();
if(num>random){
System.out.println("too big!");
}else if(num<random&&num!=0){
System.out.println("too samll!");
}else if(num==0){
System.out.println("come on!");
break;
}else{
System.out.println("you win!");
break;
}
}
System.out.println("end");
}
public static void test5(){
Scanner scanner=new Scanner(System.in);
int password=0;
do{
System.out.println("Please Enter Password:");
password=scanner.nextInt();
System.out.println("The Password Is False");
}while(password!=123);
System.out.println("The Password Is True");
}
public static void test6(){
int sum=0;
for (int i=1;i<=100;i++){
System.out.println(i);
sum+=i;
}
System.out.println(sum);
}
public static void test7(){
System.out.println("Pleasse Enter max:");
Scanner scanner=new Scanner(System.in);
int max=scanner.nextInt();
int count=0;
for (int i=1;i<=max;i++){
if (i%7==0){
System.out.println(i);
count++;
}
}
System.out.println("7的倍数的个数:"+count);
}
public static void test8(){
for (int i=1;i<=3;i++){
for (int j=1;j<=4;j++){
System.out.print("*");
}
System.out.println();
}
}
public static void test9(){
for (int i=1;i<=5;i++){
for (int j=1;j<=i;j++){
System.out.print("*");
}
System.out.println();
}
}
public static void test10(){
int type=3;
switch(type){
case 1:
System.out.println("1");
break;
case 2:
System.out.println("2");
break;
case 3:
System.out.println("3");
break;
case 4:
System.out.println("4");
break;
default:
System.out.println("default"+type);
break;
}
}
public static void test11(){
System.out.println("Please Enter month:");
Scanner scanner=new Scanner(System.in);
int month=scanner.nextInt();
switch(month){
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
System.out.println("31days");
break;
case 4:
case 6:
case 9:
case 11:
System.out.println("30days");
break;
case 2:
System.out.println("Please Enter year:");
Scanner scanner1=new Scanner(System.in);
int year=scanner1.nextInt();
if (year%4==0&&year%100!=0||year%400==0){
System.out.println("29days");
}else{
System.out.println("28days");
}
break;
default:
System.out.println("输入月份非法!");
break;
}
}
public static void test12(){
Scanner scanner=new Scanner(System.in);
System.out.println("Please Enter score:");
int score=scanner.nextInt();
switch (score/10){
case 9:
case 10:
System.out.println("A");
break;
case 8:
System.out.println("B");
break;
case 7:
System.out.println("C");
case 6:
System.out.println("D");
break;
default:
System.out.println("Not pass!");
break;
}
}
public static void test13(){
for (int i=1;i<=5;i++){
if(i==3){
continue;
}
System.out.println(i);
}
}
public static void test14(){
for (int i=1;i<=5;i++){
for (int j=1;j<=i;j++){
System.out.print(j);
}
System.out.println();
}
}
public static void test15() {
for (int i = 1; i <= 6; i++) {
for (int k = 1; k <= (6 - i); k++) {
System.out.print(" ");
}
for (int j = 1; j <= 2 * i - 1; j++) {
System.out.print("*");
}
System.out.println();
}
}
public static void test16(){
for (int i=6;i>=1;i--){
for(int k=1;k<=(6-i);k++){
System.out.print(" ");
}
for (int j=1;j<=2*i-1;j++){
System.out.print("*");
}
System.out.println();
}
}
public static void test17(){
int odd=0;
int even=0;
for (int i=1;i<=100;i++){
if (i%2==0){
even+=i;
}else{
odd+=i;
}
}
System.out.println("odd:"+odd);
System.out.println("even:"+even);
}
public static void test18(){
int count=0;
for (int i=1;i<=100;i++){
if(i%5==0){
System.out.print(i+"\t");
count++;
if (count % 3==0){
System.out.println();
}
}
}
}
public static void test19(){
int sum=1;
for (int i=9;i>=1;i--){
sum*=i;
}
System.out.println(sum);
}
public static void test20(){
System.out.println("Please Enter profit:");
Scanner scanner=new Scanner(System.in);
double profit=scanner.nextDouble();
double gift=0;
if (profit<=10){
gift=profit*0.01;
}else if(profit>10&&profit<=20){
gift=10*0.01+(profit-10)*0.075;
}else if(profit>20&&profit<=40){
gift=10*0.01+10*0.075+(profit-20)*0.05;
}else if(profit>40&&profit<=60){
gift=10*0.01+10*0.075+20*0.05+(profit-40)*0.03;
}else if(profit>60&&profit<=100){
gift=10*0.01+10*0.075+20*0.05+(profit-60)*0.015;
}else if(profit>100){
gift=10*0.01+10*0.075+20*0.05+40*0.015+(profit-100)*0.01;
}
System.out.println("gift:"+gift);
}
public static void test21(){
for (int i=100;i<=200;i++){
boolean issushu=true;
for (int j=2;j<i;j++) {
if (i % j == 0) {
issushu = false;
break;
}
}
if (issushu==true){
System.out.println(i+" is sushu.");
}
}
}
}
Processed:
0.012, SQL:
9
