public class Tester{

  

   public static void main(String arg[ ]){
        String s1="JAVALAVAGUAVA";
        String s2="     java is  very   cool     "; //5,1,2,3,5 spaces
        String s3="counting, 12345";
        int iNum=25;
        double d1 = 4.8;
        double d2 = 5.1;
	System.out.println(s1.substring(3,4));	
	s1=s1.substring(7);
	System.out.println(s1.toUpperCase( ));	
	System.out.println(s2.trim( ));	
	System.out.println(s2.length( ));	
	s1 = s3.substring(11);
        try{
            iNum = Integer.parseInt(s1);
        }
        catch(NumberFormatException nfe){
            iNum = iNum+2;
        }
	    if(iNum%3 == 0){
           System.out.println("It is: "+ iNum );
        }
        else{
           System.out.println("It is still: "+ iNum );
        }	
	System.out.println(s2 + s3);	
	iNum = (int)(d1+d2);
	System.out.println("result integer = " + iNum );	
	d2 = (int)(d1+d2);
	System.out.println("result of doubles = " + d2 );	
	d2 = d1 + (s2.length( )/2) ;
	System.out.println("result and length = " + d2 );	
	d1 = d1 +iNum;
	System.out.println("last one " + d1 );
   }  //closes main method


} // closes Tester