solve it in java (use methods and loops dont use array ) initial time by using System.currentTimeMillis

please solve it in an understandable way with explanation .

Problem Description: Write a game to help users to improve their arithmetic calculation skills. The aim of the game is to solve maximum number of questions correctly in a limited time. The game must generate random arithmetic expressions of two and three operations with random integer operands and asks the user the answer. If the user correctly writes the answer, the program generates the next random question until the time finishes. Use the following rules to implement your program. 1. Give initial time of 1 minute (increase the total time by 5 seconds if 5 questions in a row were correct). 2. Implement two levels: a) First level uses one operation with two operands only, e.g. 5+3 ? b) Second level uses two operations with three operands, e.g. 20/4+5 ? 3. At the end of the program calculate and show the score by grading total number of correctly answered questions. The program also must display the total time that is elapsed and number of correct answer/questions. You can provide motivational messages such as in the sample run that is provided. 4. According to the score of the user, put a threshold to decide whether the user can advance to the next level or repeat the current level. 5. At the end of game ask the user if he wants to repeat the level, advance to the next level (if he has enough points), or quit the program. 6. Here is a sample run of the program: Welcome to Arithmetic's Exercise Program Answer as many questions in total 60 seconds. You get 5 seconds bonus if you answer 5 questions in a row. Use java arithmetic precedence rules! Input ' q ' to quit or any key to start: 1. 5+69=59 Correct 2. 260=2 Correct 3. 3/8+5=5 Correct 4. 8/24=0 Correct 5. 912+0=96 Correct (5 seconds added) 6. 5212+13=51 Wrong 7. 5+19=59 wrong 8. 220=2 wrong 9. 3/1+5=5 wrong Time finished! You are as fast as a turtle! You answered 5 questions correctly out of 9 in 65 seconds. You can not advance to the next level Input ' q ' to quit or any key to restart