java - How can I work with Java string arrays?

Question

I have a String Array. Whenever I fetch an Array, I get data like this

[Alex Jones, Robert Flip, Farabi Fahim]

Now, my question is

1. Is possible to remove [] from the result?

2. How can I progrmatically format names like this A.Jones, R.Flip & F.Fahim from result?

Answer 1

您可以按照您描述的方式格式化名称，例如：

System.out.println("Alex Jones".replaceAll("^(\\w)\\w+", "$1."));

A.琼斯

至于你的第一个问题，那应该只是一个简单的substring调用：arrayString.substring(1, arrayString.length() - 1).

Answer 2

要让 Alex Jones 退出数组，请使用names[0].

private String fixName(String name)
{
   //break into name and last name
   int whiteIndex = name.indexOf(' ');
   String newName = name.substring(0, 1) + "." + name.substring(whiteIndex, name.length);

   return newName;
}

public static void main()
{
 String[] names = whateverYouUseToGetNames();
 System.out.println(Arrays.toString(names));
 for(int i = 0; i < names.length; i++)
      System.out.println(fixName(names[i]));

}