Java 实例 将字符串转换为char

class CharToStringDemo
{
   public static void main(String args[])
   {
      // Method 1: Using toString() method
      char ch = 'a';
      String str = Character.toString(ch);
      System.out.println("String is: "+str);

      // Method 2: Using valueOf() method
      String str2 = String.valueOf(ch);
      System.out.println("String is: "+str2);
   }
}

String is: a
String is: a

class StringToCharDemo
{
   public static void main(String args[])
   {
      // Using charAt() method
      String str = "Hello";
      for(int i=0; i<str.length();i++){
        char ch = str.charAt(i);
        System.out.println("Character at "+i+" Position: "+ch);
      } 
   }
}

Character at 0 Position: H
Character at 1 Position: e
Character at 2 Position: l
Character at 3 Position: l
Character at 4 Position: o