试图弄清楚如何打印某个字符串，如果该字符串包含某个第一个字符

Question

 public class SchoolNames
 {
     private ArrayList<String> names;

    /**
     * Creates a collection of names.
     */
     public SchoolNames()
     {
        names = new ArrayList<>();
     }

    /**
     * Add a name to the collection.
     */
    public void addName(String Name)
    {
        names.add(Name);
    }

    /**
     * Remove a name from the collection.
     */
    public void removeName(int index)
    {
        if (index >= 0 && index < names.size()) 
        {
            names.remove(index);
            System.out.println("Name removed");
        }
        else
        {
            System.out.println("No names to remove");
        }
     }

    /**
     * Return the number of names stored in the collection.
     */
    public int getNumberOfNames()
    {
        return names.size();
    }

    public void listAllNames()
    {
        for (String name : names)
        {
            if (name.startsWith("a"))
            {
                System.out.println("Fizz");
            }
            else if (name.startsWith("A"))
            {
                System.out.println("Buzz");
            }
            else
            {
                System.out.println(name);
            }
        }
    }
}

Answer 1

您应该为此添加else语句。如果所有条件在If和else If中失败，则只执行else部分，否则不执行

if (name.contains("a")) {
    System.out.println("Fizz");
} else if (name.contains("A")) {
    System.out.println("Buzz");
} else {
    System.out.println(name);
}

UPDATE：如果需要检查字符串的开始元素，那么应该检查name.startswith（“a”）

更新：

if (name.startsWith("a") || name.startsWith("e")//....rest of check)