我是Java的新手,正在尝试解决以下问题
这就是我的故事:
程序会生成20个数字(最多100个)并将每个数字存储在数组中。生成后,程序必须将两个数字相加并将答案存储在数组中。
randomNumber[0]+randomNumber[1]=answer[0]
randomNumber[2]+randomNumber[3]=answer[1]
randomNumber[4]+randomNumber[5]=answer[2]
等等..
完成后,我会检查用户输入的答案并计算正确的答案。
问题是:我不知道如何将两个数字加在一起并将其存储在数组中。看起来很简单,但是我经验不足:)
目前我被困在这里,如果有人可以解释或帮助我如何解决此问题,我将不胜感激。
public class gNumber {
private final int[] num = new int[20]; // array of randomly generated numbers
private int[] answers; // array of correct answers and UserAnswers
private final int[] userAnswers = new int[10];
private int numOfCorrect = 0;
// Accessor to get the randomly generated number
int getNumbers(final int n) {
return num[n];
}
int numOfCorrectAnswers() {
return numOfCorrect;
}
// Mutator to store store user input
void setUsrAnswers(final int _index, final int answer) {
userAnswers[_index] = answer;
}
// Method to generate random 20 numbers
public void RandomN() {
for (int i = 0; i < num.length; i++) {
final int randomNum = (int) (Math.random() * 100);
num[i] = randomNum;
final int a = num[i];
// int b =num[i];
answers[i] = a + a;
System.out.println(i + ")" + num[i] + answers[i]);
}
}
// method to add two numbers and store in in answers array
public void add(int arg1, int arg2) {
int b = 0;
while (b < 10) {
arg1 = num[b];
arg2 = num[b + 1];
answers[b] = arg1 + arg2;
System.out.println(answers[b]);
b = b + 1;
}
}
// method to check user answers
public void usrInput(final int usrAnwer) {
for (final int num : answers) {
if (num == usrAnwer) {
numOfCorrect++;
}
}
}
}
最佳答案
一个简单的解决方案:
int N = 20; //20 Random numbers
int[] randomNumber = new int[N];
int[] answer = new int[N/2];
//Generate random numbers of size N
for (int i = 0; i < N; i++) {
randomNumber = generateRandom(0, 100);
}
//populate answers
for (int i = 0; i < answer.length; i++) {
answer[i] = randomNumber[i*2] + randomNumber[i*2 + 1];
}
//Generate a random number from [min, max]
private int generateRandom(int min, int max) {
return min + (int)(Math.random() * ((max - min) + 1));
}
说明在评论中。 :-)
关于java - 在数组中生成随机数,将它们加在一起并将答案存储在数组中,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/7109226/