char형으로 형변환하는 방법

tochar.java

public class toChar {
  public static void main(String[] args){
    int a = 66;
    double b = 3.456;
    String c = "90";
    char d = 'd';
    
    System.out.println("Integer to char : " + (char)a);
    // Integer to char : B
    
    System.out.println("String to char : " + c.charAt(0)+", "+c.charAt(1));
    // String to char : 9, 0
    
    System.out.println("String to char Array : " + Arrays.toString(c.toCharArray()));
    // String to char Array : [9, 0]
  }
}