In java please

C 1 : Search. estion 13 (20 points) Implement a method named targetSumO that takes four parameters parameters: 1. line, a string 2. first, an integer 3. last, an integer bigger than first 4. target, a character Qu The method will return the number of target occurrences between first any of the positions is invalid, returm1 For example, the line below: and last positions, inclusive, in line. If System.out.println (targetSum ("computer science", 4,13,'')) will return 2