java - 在数组中搜索特定数字并打印出所有相应的变量

Question

void searchForPopulationChange()
  {
     int input;
     int searchCount = 0;

     System.out.println ("Enter the Number for Population Change to be found: ");
     input = scan.nextInt();
     boolean found = false;
     for (searchCount = 0; searchCount < populationChange.length; searchCount++)
     {

        if (populationChange[searchCount] == input)
        {
           found = true;
           break;
        }
     }
     if (found)
     {
        System.out.print(""+countyNames[searchCount]+" County / City with a population of "+populationChange[searchCount]+" individuals\n");
     }
     else
     {

        System.out.print("WRONG INPUT");
     }

  }

}

你好，以上是我目前的程序。我在让它提取所有相应变量时遇到问题。IE：我输入“200”，数组中有 (2) 个单元具有相应的 (200) 值，但是，这只会打印出其中的 1 个。

任何人有任何快速指针？

Answer 1

当你找到你的价值时，而不是打破

 for (searchCount = 0; searchCount < populationChange.length; searchCount++)
 {

    if (populationChange[searchCount] == input)
    {
       found = true;
       break;
    }
 }
 if (found)
 {
    System.out.print(""+countyNames[searchCount]+" County / City with a population of "+populationChange[searchCount]+" individuals\n");
 }

只需当场打印

 for (searchCount = 0; searchCount < populationChange.length; searchCount++)
 {

    if (populationChange[searchCount] == input)
    {
       found = true;
       System.out.print(""+countyNames[searchCount]+" County / City with a population of "+populationChange[searchCount]+" individuals\n");
    }
 }

循环完成后，您仍然可以检查错误的输入

 if (found == false)
 {
    System.out.print("WRONG INPUT");
 }