/******************************************************************************
* Example of Wrapper classes 
******************************************************************************/
public class wrapper                
{                       
    public static void main(String[ ] args)
    {   
        int     num1    = 1;     
        long    num2    = 2;
        float   num3    = 3.5f;
        double  num4    = 4.5;
                
        Integer num5    = 1;
        Long    num6    = num2;             //assign a long to a Long                   
        Float   num7    = 3.5F; 
        Double  num8    = num4;
        String  s1      = "-123";
        String  s3      = "-123.5";
        
        num1 = num5;                        //assign an Integer to an int                           
        
        System.out.println(num5);   
        System.out.println(num5);   
        System.out.println(num7);   
        System.out.println(num8);   

        num1 += num5;       
        System.out.println(num1);   
        num7 += num5;       
        System.out.println(num7);   
        
        num1 = Integer.parseInt(s1);        //convert string a an Integer
        System.out.println(num1);   
        num2 = Long.parseLong(s1);
        System.out.println(num2);   
        num3 = Float.parseFloat(s3);
        System.out.println(num3);   
        num4 = Double.parseDouble(s3);
        System.out.println(num4);   
        
        String s = num8.toString();
        System.out.print(s);
    }                       
}