package 加减法;
import java.util.ArrayList;
import java.util.Random;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
lv2 a=new lv2();
lv3 b=new lv3();
lv4 c=new lv4();
lvmenu();
int choose=sc.nextInt();
int max,min;
max=100;
min=0;
while(choose!=0) {
switch(choose){
case 1:{
max=setmax();
min=setmin();
if(min>max) {
int k;
k=min;
min=max;
max=k;
}
System.out.println(max+" "+min);
break;
}
case 2:{
a.setmax(max);
a.setmin(min);
a.going(max, min);
break;
}
case 3:{
b.setmax(max);
b.setmin(min);
b.going(max, min);
break;
}
case 4:{
c.setmax(max);
c.setmin(min);
c.going(max, min);
break;
}
case 5:{
a.mis();
b.mis();
c.mis();
}
}
lvmenu();
choose=sc.nextInt();
}
}
public static void lvmenu() {
System.out.println("欢迎使用四则运算系统");
System.out.println("1.参数设置");
System.out.println("2.小学二年级口算题");
System.out.println("3.小学三年级口算题");
System.out.println("4.小学四年级口算题");
System.out.println("5.错题本");
}
public static int setmax() {
System.out.print("请输入最大值");
Scanner sc=new Scanner(System.in);
int max=sc.nextInt();
return max;
}
public static int setmin() {
System.out.print("请输入最小值");
Scanner sc=new Scanner(System.in);
int min=sc.nextInt();
return min;
}
public static void easy() {
int bingo=0,sum=0;
int x[]=new int[100];
int y[]=new int[100];
int z[]=new int[100];
System.out.println("请输入需要生成多少道数学题");
int n;
Scanner sc=new Scanner(System.in);
Random r=new Random();
n=sc.nextInt();
int test=sc.nextInt();
int test1=2;
int max,min;
System.out.println("请输入最大值");
max=sc.nextInt();
System.out.println("请输入最小值");
min=sc.nextInt();
int joker=max-min;
Test tes=new Test();
for(int i=1;i<=n;i++) {
int a=(int)(Math.random()*joker+min);
int b=(int)(Math.random()*joker+min);
int c=(int)(Math.random()*4+1);
int d=1;
//d=(int)(Math.random()*10+1);
if(d<=5) {
if(a<b) {
int k;
k=b;
b=a;
a=k;
}
putout(a,b,c,i);
if(d>5&&test1==1)
{
int t=(int)(Math.random()*joker+min);
int e=(int)(Math.random()*4+1);
if(d<=8) {
putout(a,b,c,i);
sign(e);
System.out.print(t);
}
else if(d==9){
System.out.print("(");
putout(a,b,c,i);
System.out.print(")");
sign(e);
System.out.print(t);
}
else if(d==10) {
System.out.print("第"+i+"题 "+a);
sign(c);
System.out.print("("+b);
sign(e);
System.out.print(t+")");
}
}
System.out.print("=");
int score=sc.nextInt();
int end=end(a,b,c);
if(score==end) {
bingo++;
}
else {
System.out.println("真可惜，答错了");
x[sum]=a;
y[sum]=b;
z[sum++]=c;
}
//System.out.print("\t");
//if(i%len==0)
//System.out.print("\n");
}
}
System.out.println("\n正确率："+bingo*100/n+"%");
System.out.println("错题数："+sum);
for(int i=0;i<sum;i++) {
System.out.print("第"+(i+1)+"题 "+x[i]);
sign(z[i]);
System.out.println(y[i]+"="+end(x[i],y[i],z[i]));
}
}
public static void sign(int c) {
if(c==1)
System.out.print("+");
else if(c==2)
System.out.print("-");
else if(c==3)
System.out.print("*");
else
System.out.print("➗");
}
public static int end(int a,int b,int c) {
int endd=0;
if(c==1){
endd=a+b;
}
if(c==2) {
endd=a-b;
}
if(c==3) {
endd=a*b;
}
if(c==4) {
endd=a/b;
}
return endd;
}
public static void putout(int a,int b,int c,int i) {
System.out.print("第"+i+"题 "+a);
sign(c);
System.out.print(b);
}
}
package 加减法;
import java.util.Scanner;
public class lv4 extends lv2 {
Scanner sc=new Scanner(System.in);
int max,min,joker;
int a,b,c,d,e,f,g,h,m,n;
int mistake=0;
int mistakea[]=new int[1000];
int mistakeb[]=new int[1000];
int mistakec[]=new int[1000];
int mistaked[]=new int[1000];
int mistakee[]=new int[1000];
int mistakef[]=new int[1000];
int mistakeg[]=new int[1000];
int mistakeh[]=new int[1000];
int mistakem[]=new int[1000];
public void setmax(int max) {
if(max>1000)
max=1000;
this.max=max;
}
public void setmin(int min) {
if(min<1)
min=1000;
this.min=min;
}
public void setn() {
System.out.print("请输入生成题目的数量");
this.n=sc.nextInt();
}
public void setting() {
joker=max-min;
this.a=(int)(Math.random()*joker+min);
this.b=(int)(Math.random()*joker+min);
this.c=(int)(Math.random()*4+1);
this.d=(int)(Math.random()*joker+min);
this.e=(int)(Math.random()*joker+min);
this.f=(int)(Math.random()*4+1);
this.g=(int)(Math.random()*4+1);
this.h=(int)(Math.random()*joker+min);
this.m=(int)(Math.random()*4+1);
}
public void going(int max,int min) {
setmax(max);
setmin(min);
setn();
System.out.println(n);
for(int i=0;i<n;i++) {
setting();
System.out.print("((("+a);
sign(c);
System.out.print(b+")");
sign(f);
System.out.print(d+")");
sign(g);
System.out.print(e+")");
sign(m);
System.out.print(h+"=");
int result=sc.nextInt();
if(result==com(a,b,c,d,e,f,g,h,m)) {
System.out.println("答对了!");
}
else {System.out.print(com(a,b,c,d,e,f,g,h,m));
mistakea[mistake]=a;
mistakeb[mistake]=b;
mistakec[mistake]=c;
mistaked[mistake]=d;
mistakee[mistake]=e;
mistakef[mistake]=f;
mistakeh[mistake]=h;
mistakem[mistake]=m;
mistakeg[mistake++]=g;
System.out.println("很遗憾，答错了!");
}
}
System.out.println("\n正确率："+(n-mistake)*100/n+"%");
System.out.println("错题数："+mistake);
mis();
}
public void mis() {
Scanner sc=new Scanner(System.in);
for(int i=0;i<mistake;i++) {
System.out.print('第'+i+"题((("+mistakea[i]);
sign(mistakec[i]);
System.out.print(mistakeb[i]+")");
sign(mistakef[i]);
System.out.print(mistaked[i]+")");
sign(mistakeg[i]);
System.out.println(mistakee[i]+")");
sign(mistakem[i]);
System.out.println(mistakeh[i]+"=");
int result=sc.nextInt();
if(result==com(a,b,c,d,e,f,g,h,m)) {
System.out.println("答对了!");
}
else {System.out.print(com(mistakea[i],mistakeb[i],mistakec[i],mistaked[i],mistakee[i],mistakef[i],mistakeg[i],mistakeh[i],mistakem[i]));
mistakea[mistake]=a;
mistakeb[mistake]=b;
mistakec[mistake]=c;
mistaked[mistake]=d;
mistakee[mistake]=e;
mistakef[mistake]=f;
mistakeg[mistake++]=g;
System.out.println("很遗憾，答错了!");
}
}
}
public int com(int a,int b,int c,int d,int e,int f,int g,int h,int m) {
int endd=0;
if(c==1){
endd=a+b;
}
if(c==2) {
endd=a-b;
}
if(c==3) {
endd=a*b;
}
if(c==4) {
endd=a/b;
}
if(f==1){
endd+=b;
}
if(f==2) {
endd-=d;
}
if(f==3) {
endd*=d;
}
if(f==4) {
endd/=d;
}
if(g==1){
endd+=e;
}
if(g==2) {
endd-=e;
}
if(g==3) {
endd*=e;
}
if(g==4) {
endd/=e;
}
if(m==1){
endd+=h;
}
if(m==2) {
endd-=h;
}
if(m==3) {
endd*=h;
}
if(m==4) {
endd/=h;
}
return endd;
}
}
package 加减法;
import java.util.Scanner;
public class lv3 extends lv2{
Scanner sc=new Scanner(System.in);
int max,min,joker;
int a,b,c,d,e,f,g,n;
int mistake=0;
int mistakea[]=new int[1000];
int mistakeb[]=new int[1000];
int mistakec[]=new int[1000];
int mistaked[]=new int[1000];
int mistakee[]=new int[1000];
int mistakef[]=new int[1000];
int mistakeg[]=new int[1000];
public void setmax(int max) {
if(max>1000)
max=1000;
this.max=max;
}
public void setn() {
System.out.print("请输入生成题目的数量");
this.n=sc.nextInt();
}
public void setting() {
joker=max-min;
this.a=(int)(Math.random()*joker+min);
this.b=(int)(Math.random()*joker+min);
this.c=(int)(Math.random()*4+1);
this.d=(int)(Math.random()*joker+min);
this.e=(int)(Math.random()*joker+min);
this.f=(int)(Math.random()*4+1);
this.g=(int)(Math.random()*4+1);
}
public void going(int max,int min) {
setmax(max);
setmin(min);
setn();
System.out.println(n);
for(int i=0;i<n;i++) {
setting();
System.out.print("(("+a);
sign(c);
System.out.print(b+")");
sign(f);
System.out.print(d+")");
sign(g);
System.out.print(e+"=");
int result=sc.nextInt();
if(result==com(a,b,c,d,e,f,g)) {
System.out.println("答对了!");
}
else {System.out.print(com(a,b,c,d,e,f,g));
mistakea[mistake]=a;
mistakeb[mistake]=b;
mistakec[mistake]=c;
mistaked[mistake]=d;
mistakee[mistake]=e;
mistakef[mistake]=f;
mistakeg[mistake++]=g;
System.out.println("很遗憾，答错了!");
}
}
System.out.println("\n正确率："+(n-mistake)*100/n+"%");
System.out.println("错题数："+mistake);
mis();
}
public void mis() {
Scanner sc=new Scanner(System.in);
for(int i=0;i<mistake;i++) {
System.out.print("第"+i+"题(("+mistakea[i]);
sign(mistakec[i]);
System.out.print(mistakeb[i]+")");
sign(mistakef[i]);
System.out.print(mistaked[i]+")");
sign(mistakeg[i]);
System.out.println(mistakee[i]+"=");
int result=sc.nextInt();
if(result==com(a,b,c,d,e,f,g)) {
System.out.println("答对了!");
}
else {System.out.print(com(mistakea[i],mistakeb[i],mistakec[i],mistaked[i],mistakee[i],mistakef[i],mistakeg[i]));
mistakea[mistake]=a;
mistakeb[mistake]=b;
mistakec[mistake]=c;
mistaked[mistake]=d;
mistakee[mistake]=e;
mistakef[mistake]=f;
mistakeg[mistake]=g;
System.out.println("很遗憾，答错了!");
}
}
}
public int com(int a,int b,int c,int d,int e,int f,int g) {
int endd=0;
if(c==1){
endd=a+b;
}
if(c==2) {
endd=a-b;
}
if(c==3) {
endd=a*b;
}
if(c==4) {
endd=a/b;
}
if(f==1){
endd+=b;
}
if(f==2) {
endd-=d;
}
if(f==3) {
endd*=d;
}
if(f==4) {
endd/=d;
}
if(g==1){
endd+=e;
}
if(g==2) {
endd-=e;
}
if(g==3) {
endd*=e;
}
if(g==4) {
endd/=e;
}
return endd;
}
}
package 加减法;
import java.util.Scanner;
public class lv2 {
Scanner sc=new Scanner(System.in);
int max,min,joker;
int a,b,c,n;
int mistake=0;
int mistakea[]=new int[1000];
int mistakeb[]=new int[1000];
int mistakec[]=new int[1000];
public void setmax(int max) {
if(max>100)
max=100;
this.max=max;
}
public void setmin(int min) {
if(min<1)
min=1;
this.min=min;
}
public void setn() {
System.out.print("请输入生成题目的数量");
this.n=sc.nextInt();
}
public void setting() {
joker=max-min;
this.a=(int)(Math.random()*joker+min);
this.b=(int)(Math.random()*joker+min);
this.c=(int)(Math.random()*4+1);
}
public void going(int max,int min) {
setmax(max);
setmin(min);
setn();
for(int i=0;i<n;i++) {
setting();
System.out.print(a);
sign(c);
System.out.print(b+"=");
int result=sc.nextInt();
if(result==com(a,b,c)) {
System.out.println("答对了!");
}
else {
mistakea[mistake]=a;
mistakeb[mistake]=b;
mistakec[mistake++]=c;
System.out.println("很遗憾，答错了!");
}
}
System.out.println("\n正确率："+(n-mistake)*100/n+"%");
System.out.println("错题数："+mistake);
mis();
}
public void mis() {
for(int i=0;i<mistake;i++) {
System.out.print("第"+i+"题"+mistakea[i]);
sign(mistakec[i]);
System.out.print(mistakeb[i]+"=");
int result=sc.nextInt();
if(result==com(a,b,c)) {
System.out.println("答对了!");
}
else {
System.out.println("很遗憾，答错了!");
}
System.out.println("\n正确率："+(n-mistake)*100/n+"%");
System.out.println("错题数："+mistake);
}
}
public void sign(int c) {
if(c==1)
System.out.print("+");
else if(c==2)
System.out.print("-");
else if(c==3)
System.out.print("*");
else
System.out.print("➗");
}
public int com(int a,int b,int c) {
int endd=0;
if(c==1){
endd=a+b;
}
if(c==2) {
endd=a-b;
}
if(c==3) {
endd=a*b;
}
if(c==4) {
endd=a/b;
}
return endd;
}
}