/******************************************************************************
* Compilation: javac Ruler.java
* Execution: java Ruler
*
* Prints the relative lengths of the subdivisions on a ruler.
*
* % java Ruler
* 1
* 1 2 1
* 1 2 1 3 1 2 1
* 1 2 1 3 1 2 1 4 1 2 1 3 1 2 1
* 1 2 1 3 1 2 1 4 1 2 1 3 1 2 1 5 1 2 1 3 1 2 1 4 1 2 1 3 1 2 1
*
******************************************************************************/ public class Ruler {
public static void main(String[] args) {
String ruler1 = " 1 ";
String ruler2 = ruler1 + "2" + ruler1;
String ruler3 = ruler2 + "3" + ruler2;
String ruler4 = ruler3 + "4" + ruler3;
String ruler5 = ruler4 + "5" + ruler4; System.out.println(ruler1);
System.out.println(ruler2);
System.out.println(ruler3);
System.out.println(ruler4);
System.out.println(ruler5);
} }