Comments

• 
  

  0

  

  scu09156146  commented on May 14, 2024, 12:28 p.m.

  題解

  import java.util.ArrayList;
  import java.util.Scanner;
  
  public class FindName {
  
      public static void main(String[] args) {
          Scanner scanner = new Scanner(System.in);
          ArrayList<String> namesList = new ArrayList<String>();
  
          String name = scanner.next();
          while (!name.equals(".")) {
              namesList.add(name);
              name = scanner.next();
          }
  
          String findName = scanner.next();
          scanner.close();
  
          if (namesList.contains(findName)) { // 檢查ArrayList裡是否包含要找的名字
              System.out.println(findName + " is in the list at index " + namesList.indexOf(findName));
              // 用 indexOf() 找出要找的名字(第一次)出現在哪個位置
          } else {
              System.out.println(findName + " is not in the list.");
          }
  
      }
  
  }