字符串无法解析为某个类型

Question

我的代码中出现"字符串无法解析为类型"错误.

public class Main {


 public static void main(String[] args) {
  // TODO Auto-generated method stub
  FormLetter template;
  template = new FormLetter();
  template.print();
  template.composeFormLetter(Sean, Colbert, God);
  template.print();

 }

}

class FormLetter
 {
  public void print(){
    System.out.println(to + candidate + from);

  }  

  public void composeFormLetter(string t, string c, string f){

   to = t;
   candidate = c; 
   from = f;
  } 
   private string to;
   private string candidate;
   private string from;

  }

Answer 1

String在Java中大写.你不能使用小写string.(那是C#)

附带问题:
以下编译如何？

template.composeFormLetter(Sean, Colbert, God);