【问题标题】:[Processing 2.0]Trying to create an array of random integers and then bubble sort them[处理2.0]尝试创建一个随机整数数组,然后对它们进行冒泡排序
【发布时间】:2013-11-21 18:08:58
【问题描述】:

我试图在处理中提出一个随机整数数组,然后使用冒泡排序对它们进行排序,但我想先打印未排序的随机整数列表,然后排序并打印,我也希望数组是在 (1-100) 之间。这是我尝试编写的代码,但我想我可能还差得很远。感谢您的任何回复。

int[] arr = new int[10];


int min  = 1;
int max = 100;
int Random = int(random(min, max));
int R0 = int(random(min, max));
int R1 = int(random(min, max)); 
int R2 = int(random(min, max));
int R3 = int(random(min, max));
int R4 = int(random(min, max));
int R5 = int(random(min, max));
int R6 = int(random(min, max));
int R7 = int(random(min, max));
int R8 = int(random(min, max));
int R9 = int(random(min, max));



println ("The Length of the Array is: " + arr.length);
println ("The " + arr.length + " random numbers chosen between (" + min + " - " + max   + ") are: " + R0 + ", " + R1 + ", " + R2 + ", " + R3 + ", " + R4 + ", " + R5+ ", " + R6 + ", " + R7 + ", " + R8 + ", " + R9 + ".");
for (int i = 0; i <100;  i++)
 {  print((arr[i]= Random + i ) + ", ");

}

编辑:我想出的最终修订版:

int Random = int(random(10, 100));

int[] array = new int[Random]; // RANDOM SIZE OF ARRAY
int min  = 10; // MINIMUM RANDOM INTEGER CHOSEN
int max = 100; // MAX RANDOM INTEGER CHOSEN

int temp;


for (int i=0; i<array.length; i++) {
  array[i] = (int)random(min,max);
}
println("The Amount of Numbers That Will Be Chosen Is: " + array.length);
println("The Unsorted Numbers Chosen Are Between (" + min + " - " + max + ").");
println();
println("The Numbers Are:");
println(array);
println();
println("The Sorting Begins");


  for (int i = 0; i < array.length; i++)   
{
  println();
  println("Step " + i);  // Prints the step of insertion using "i" as the counter

    for (int j = 0; j < i; j++)
  {
      print(array[j] + ", ");
      if (array[i] < array[j])
    {
        temp = array[i];
        array[i] = array[j];
        array[j] = temp;
        }
      }
      println();
   }

【问题讨论】:

标签: java arrays sorting processing bubble-sort


【解决方案1】:

首先,您为什么要为随机数创建单独的值。你应该这样做:

int[] iArr = new int[50];
for (int i=0; i<iArr.length; i++) {
  iArr[i] = (int)random(min,max);
}

这将创建一个包含 50 的数组,并使用上面的代码填充随机数。

接下来你需要打印未排序的:

System.out.println("Unsorted:");
for(int i=0; i<iArr.length; i++) {
  System.out.println(iArr[i]);
}

然后你做你的冒泡排序,然后再次调用上面的命令来打印它们。

【讨论】:

    【解决方案2】:

    我也希望数组介于 (1-100) 之间

    提示:使用Random 类,它提供了一个很好的函数nextInt(int n) 函数:返回一个伪随机的、均匀分布在0包含)和指定值n独占),从这个随机数生成器的序列中提取。

    【讨论】:

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