我需要帮助生成 0 和 y 之间的随机数,x 是在 java 中生成的数量,正如您所看到的,我几乎就在那里,但是最后对它们进行排序给我带来了麻烦,请帮助我纠正这个问题!
//imports
import java.util.Scanner;
import java.util.Random;
//Class
public class RandomGen {
//Main Method
public static void main(String[] args) {
//Prepare Scanner
Scanner randomScanner = new Scanner(System.in);
System.out.println("Between 0 and what integer would you like to generate random Integers? ");
int y = randomScanner.nextInt();
System.out.println("Please Specify the number of Random integers you would like:");
int x= randomScanner.nextInt();
Random pseudo = new Random();
//Initialize Random
for(int i =0; i<x; i++) {
System.out.println(pseudo.nextInt(y+1));
}
}
}
//这段代码生成随机数就好了!现在我需要对它们进行分类! //这几行下面的代码语法错误太多 //我可以在上面的代码中添加什么来使其成为//此信息的简单组织,我需要创建一个数组然后将其组织起来。 //下面是我失败的尝试,谁能保持上面的代码简单?
import java.util.Arrays;
import java.util.Scanner;
import java.util.Random;
public class RandomInt {
public static void main(String[] args) {
int[] increasingRandoms(int x, int y);
{
//establishing an array
Scanner randomScanner = new Scanner(System.in);
System.out.println("Between 0 and what integer would you like to generate random Integers? ");
y = randomScanner.nextInt();
System.out.println("Please Specify the number of Random integers you would like:");
x= randomScanner.nextInt();
//Setting x to pseudoRandom into an array in order to sort later
int[] pseudoRandom = new int [x];
for(int i =0; i< x; i++){
Random pseudo = new Random();
pseudoRandom[i] = pseudo.nextInt(y);
}
//returning an array in ascending order
Arrays.sort(pseudoRandom);
return pseudoRandom;
}
for(int number : increasingRandoms(y, x)) {
System.out.print(number + " ");
}
}
}
最佳答案
尝试先将 increasingRandoms(x,y) 返回的数组存储在一个变量中,然后在增强的 for 循环中使用该变量,而不是直接使用该方法。
int[] temp=increasingRandoms(y, x);
for(int number : temp) {
System.out.print(number + " ");
}
此外,我不明白为什么你应该在每次循环迭代时创建一个新对象,最好在进入循环之前创建一个 Random 对象,然后在循环中调用 nextInt(int)
int[] pseudoRandom = new int [x];
Random pseudo = new Random();
for(int i =0; i< x; i++){
pseudoRandom[i] = pseudo.nextInt(y);
}
关于java - 生成介于 0 和 y 之间的随机数,x 是在 java 中生成的数量,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32930238/