1 package test.triangle; 2 3 4 /** 5 * count the number of times something is called 6 * used to check whether certain methods have been called 7 */ 8 public class CountCalls { 9 static int numCalls = 0; 10 incr()11 public static void incr () { 12 numCalls++; 13 } 14 getNumCalls()15 public static int getNumCalls() { 16 return numCalls; 17 } 18 } 19