Set 1 of output questions in Java

1. Program 1

class Program
{
    public static void main(String [] args)
    {
       for(int i=0; 1 ;i++)
       {
           System.out.println("ProgrammingInfinitum");
       }
    }
}


Output: Compiler Error
In for loop there is an error in condition check.


2. Program 2

class Program
{
    public static void main(String[] args)
   {
       System.out.println('A'+'B');
   }
}


Output: 131
A and B are characters here, hence their unicodes will add(A = 65 and B = 66).


3. program 3

package packOutputJava;

public class OutputJava {
   public static void main(String [] args)
   {
  System.out.println(21+21.3f+"A"+'B');
   }
}

Output: 42.3AB

int and float value adds to give 42.3 and A (String) and B (character) concatenates with it.