java 强制转换

public class VarDemo{
   public static void main(String args[]){
         byte x=3;
         x=(byte)(x+5);
         System.out.println(x);
}
}

public class Varchar{
public static void main(String args[]){
  System.out.println((char)("a"+1));
  System.out.println("你"+0);

System.out.println("0");

System.out.println("A"+0);

}
}