将数组中的整数元素进行分割

huangapple
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英文:

Divide integer elements in an array

问题

  1. 如何将数组中的所有输入整数进行分割？
  2. 我有这个名为division的方法。它只计算我输入的整数的和。如何将它们进行分割？
  4. public class Arithmetic {
  5.     public int division(int[] n) {
  6.         int quotient = 0;
  7.         for (int num : n) {
  8.             quotient = quotient / num;
  9.         }
  10.         return quotient;
  11.     }
  13.     public static void main(String[] args) throws IOException {
  15.         Arithmetic a = new Arithmetic();
  16.         Scanner sc = new Scanner(System.in);
  18.         System.out.println("1: Division");
  19.         System.out.print("Enter selection here: ");
  20.         int choice = sc.nextInt();
  21.         switch (choice) {
  22.             case 1:
  23.                 System.out.print("Enter no. of elements you want in array: ");
  24.                 int numOfElements = sc.nextInt();
  25.                 System.out.println("Enter elements in the array ~ ");
  26.                 if (sc.hasNextInt()) {
  27.                     int arraysInput[] = new int[numOfElements];
  28.                     for (int i = 0; i < numOfElements; i++) {
  29.                         arraysInput[i] = sc.nextInt();
  30.                     }
  31.                     System.out.println("Quotient: " + a.division(arraysInput));
  32.                 }
  33.         }
  34.     }
  35. }
英文:

How do you divide all the input integers in an array?
I have this method called division. It only gets the sum of the integers I've input. How do divide them?

  1. public class Arithmetic {
  2. public int division(int[] n) {
  3.     int quotient = 0;
  4.     for (int num : n) {
  5.         quotient = quotient / num;
  6.     }
  7.     return sum;
  8. }
  10. public static void main(String[] args) throws IOException {
  12.     Arithmetic a = new Arithmetic();
  13.     Scanner sc = new Scanner(System.in);
  15.     System.out.println(&quot;1: Division&quot;);
  16.     System.out.print(&quot;Enter selection here: &quot;);
  17.     int choice = sc.nextInt();
  18.     switch (choice) {
  19.         case 1:
  20.             System.out.print(&quot;Enter no. of elements you want in array: &quot;);
  21.             int numOfElements = sc.nextInt();
  22.             System.out.println(&quot;Enter elements in the array ~ &quot;);
  23.             if (sc.hasNextInt()) {
  24.                 int arraysInput[] = new int[numOfElements];
  25.                 for (int i = 0; i &lt; numOfElements; i++) {
  26.                     arraysInput[i] = sc.nextInt();
  27.                 }
  28.                 System.out.println(&quot;Quotient: &quot; + a.division(arraysInput));
  29.             }
  30.     }
  31.   }
  32. }

答案1

得分: 0

被接受的答案不可行。遗憾的是，我没有足够的“声望”来发表评论。

参考：

  1. public int division(int[] n) {
  2.     int quotient = n[0];
  3.     for (int i = 1; i < n.length; i++) {
  4.         quotient = quotient / n[i];
  5.     }
  6.     return quotient;
  7. }
  1. 如果值数组为空或为null - 抛出异常。
  2. 如果数组包含零（DivisionByZeroException）
  3. 如果数组只有一个值，则返回的值不是商（除非假设是value/1？）
    • 吹毛求疵...但返回值应该是double或float吗？
英文:

The accepted answer will not work. Unfortunately I don't have enough "rep" to post comments.

for reference:

  1. public int division(int[] n) {
  2. int quotient = n[0] ;
  3. for (int i = 1; i &lt; n.length ; i++) {
  4.     quotient = quotient / n[i];
  5. }
  6. return quotient;

}

  1. if the array of values is empty or null - exception thrown.
  2. if the array contains a zero (DivisionByZeroException)
  3. if the array has only one value, the returned value is not the quotient (unless the assumption is value/1?)
    • nitpicking... but shouldn't the return be a double or a float?

答案2

得分: 0

你需要使用以下方式更改你的除法方法：

  1. public int division(int[] n) {
  2.     int quotient = n[0];
  3.     for (int i = 1; i < n.length; i++) {
  4.         quotient = quotient / n[i];
  5.     }
  6.     return quotient;
  7. }

整个类的外观类似于以下测试代码：

  1. public class Arithmetic {
  3.     public int division(int[] n) {
  4.         int quotient = n[0];
  5.         for (int i = 1; i < n.length; i++) {
  6.             quotient = quotient / n[i];
  7.         }
  8.         return quotient;
  9.     }
  11.     public static void main(String[] args) throws IOException {
  13.         Arithmetic a = new Arithmetic();
  14.         Scanner sc = new Scanner(System.in);
  16.         // 测试除法
  17.         // System.out.println("Divison of {10,5,1} : " + a.division(new int[]{10,5,1}));
  19.         System.out.println("1: Division");
  20.         System.out.print("在此输入选择：");
  21.         int choice = sc.nextInt();
  22.         switch (choice) {
  23.             case 1:
  24.                 System.out.print("输入你想要的数组元素数量：");
  25.                 int numOfElements = sc.nextInt();
  26.                 System.out.println("输入数组元素 ~ ");
  27.                 if (sc.hasNextInt()) {
  28.                     int arraysInput[] = new int[numOfElements];
  29.                     for (int i = 0; i < numOfElements; i++) {
  30.                         arraysInput[i] = sc.nextInt();
  31.                     }
  32.                     System.out.println("商：" + a.division(arraysInput));
  33.                 }
  34.         }
  35.     }
  36. }
英文:

You need to change your division method with this

  1. public int division(int[] n) {
  2.     int quotient = n[0] ;
  3.     for (int i = 1; i &lt; n.length ; i++) {
  4.         quotient = quotient / n[i];
  5.     }
  6.     return quotient;
  7. }

The whole class looks like with some test code :

  1. public class Arithmetic {
  3.     public int division(int[] n) {
  4.         int quotient = n[0] ;
  5.         for (int i = 1; i &lt; n.length ; i++) {
  6.             quotient = quotient / n[i];
  7.         }
  8.         return quotient;
  9.     }
  11.     public static void main(String[] args) throws IOException {
  13.         Arithmetic a = new Arithmetic();
  14.         Scanner sc = new Scanner(System.in);
  16.         
  17.         // Test Division
  18.         // System.out.println( &quot;Divison of {10,5,1} : &quot; + a.division(new int[]{10,5,1}));
  21.         System.out.println(&quot;1: Division&quot;);
  22.         System.out.print(&quot;Enter selection here: &quot;);
  23.         int choice = sc.nextInt();
  24.         switch (choice) {
  25.             case 1:
  26.                 System.out.print(&quot;Enter no. of elements you want in array: &quot;);
  27.                 int numOfElements = sc.nextInt();
  28.                 System.out.println(&quot;Enter elements in the array ~ &quot;);
  29.                 if (sc.hasNextInt()) {
  30.                     int arraysInput[] = new int[numOfElements];
  31.                     for (int i = 0; i &lt; numOfElements; i++) {
  32.                         arraysInput[i] = sc.nextInt();
  33.                     }
  34.                     System.out.println(&quot;Quotient: &quot; + a.division(arraysInput));
  35.                 }
  36.         }
  37.     }
  38. }

huangapple
  • 本文由 发表于 2020年10月17日 00:10:41
  • 转载请务必保留本文链接：https://go.coder-hub.com/64392757.html
  • arrays
  • java
  • math
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