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+public class AdditionPattern {
+ private int current;
+ private int increment;
+
+ public AdditionPattern(int start, int inc) {
+ current = start;
+ increment = inc;
+ }
+ // Variable sets integer currentNumber and returns the current value
+ public int currentNumber() {
+ return current;
+ }
+ // Increments the values
+ public void next() {
+ current += increment;
+ }
+ // Subtracts Values
+ public void prev() {
+ if (current > increment) {
+ current -= increment;
+ }
+ }
+
+ public static void main(String[] args) {
+ AdditionPattern plus3 = new AdditionPattern(2, 3);
+ System.out.println(plus3.currentNumber()); // expected output: 2
+ plus3.next();
+ System.out.println(plus3.currentNumber()); // expected output: 5
+ plus3.next();
+ System.out.println(plus3.currentNumber()); // expected output: 8
+ plus3.next();
+ System.out.println(plus3.currentNumber()); // expected output: 11
+ plus3.prev();
+ System.out.println(plus3.currentNumber()); // expected output: 8
+ plus3.prev();
+ System.out.println(plus3.currentNumber()); // expected output: 5
+ plus3.prev();
+ System.out.println(plus3.currentNumber()); // expected output: 2
+ plus3.prev();
+ System.out.println(plus3.currentNumber()); // expected output: 2
+ }
+}
+AdditionPattern.main(null);
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