public class Sample {
 	public static void main(String args[]){
	double radius, PI=3.14;
	int modelN=1;
	radius=1.;
	// comment
	System.out.println("Program number="+modelN); //comment 2
	System.out.println("Radius="+radius);
	}
	
	/* 
	looooong comment 
	*/
}
/* output: 
vpodolsk@wngr412-pc01:~/ph265> javac Sample.java
vpodolsk@wngr412-pc01:~/ph265> java Sample
Program number=1
Radius=1.0
vpodolsk@wngr412-pc01:~/ph265>
*/