/* Online Java - IDE, Code Editor, Compiler Online Java is a quick and easy tool that helps you to build, compile, test your programs online. */ //VERSION 1a: public class Main { static long startTime; static long endTime; static boolean running; static long elapsed; static int lengthFirstNumber; static int lengthSecondNumber; static String lastDigitFirstNumber; static String lastDigitSecondNumber; static int temp; static int firstDigitTotalDigits; static int lastDigitTotalDigits; static int total; //stores total of two digits static String grandTotal=""; static String remainingPortion; static int remainingPortionInteger; static String remainingPortionString; static int lastDigitNumberOneRemainingPortion; static int lastDigitNumberTwoRemainingPortion; static String number; static int lastDigitRemainingPortion; static int lengthNumber; static String lastDigitNumber; public static void start() { Main.startTime = System.nanoTime(); Main.running = true; } public static void stop() { Main.endTime = System.nanoTime(); Main.running = false; } public static long getElapsedTime() { if (running) { elapsed = System.nanoTime() - startTime; } else { elapsed = endTime - startTime; } return elapsed; } public static double getElapsedTimeInSeconds() { return getElapsedTime() / 1_000_000_000.0; } public static void main(String[] args) { System.out.println("Welcome to Online IDE!! Happy Coding :)"); System.out.println("Addition program, ensure String has maximum characters: " + "2,147,483,648"); //***PASS**** - 100*** via final test 3,4,6,7,9,10,21,23 //String number2="99"; //String number1= "1"; //***PASS**1764*** via final test 0,2,3,4,5,23 //String number2="993"; //String number1="771"; //PASS*****160****** - via final test 3,4,5,6,7,9,10,21,23 //String number2 = "136"; //String number1 = "24"; //PASS******846370032454542****** via final test 3,4,5,6,7,9,10,11,20,23 //String number2 = "846369999999999"; //String number1 = "32454543"; //PASS****82160**** via final test 3,4,5,6,7,9,10,11,12,23 //String number2 = "81636"; //String number1 = "524"; //PASS******* - 400219 via final test 3,4,5,6,7,9,10,11,13,15,17,18,19,20,23 //String number2 = "399627"; //String number1 = "592"; //pass********* - 400019 via final test 3,4,5,6,7,9,10,13,15,17,18,19,20,23 //String number2 = "399947"; //String number1 = "72"; //PASS***4962****** getting via final test 3,4,5,6,7,9,21,23 //String number2 = "3970"; //String number1 = "992"; //PASS****** 562 via final test 0,1,3,4,5,23 //String number1 = "370"; //String number2 = "192"; //PASS**** - 1000 via final test 2,3,4 //String number2 = "999"; //String number1 = "1"; //PASS***** 1998 via final test 2,3,4 //String number1 = "999"; //String number2 = "999"; //PASS ******* 1098 via final test 3,4,6,7,8,10,21,23 //String number1 = "999"; //String number2 = "99"; //***PASS***108 via final test 3,4,6,7,17,23 //String number1 = "99"; //String number2 = " 9"; //***PASS**** 1400019 via final test 3,4,5,6,7,9,10,11,13,15,17,18,19,20,23 //String number2 = "1399947"; //String number1 = "72"; //***PASS****5210*** via final test 3,4,6,7,9,10,21,23 //String number2 = "4666"; //String number1 = "544"; //***PASS***711**** via final test 3,4,6,7,9,21,23 //String number2 = "652"; //String number1 = "59"; //PASS****1390219 ***** via final test //String number2 = "1389627"; //String number1 = "592"; //PASS***********22023**** via final test 3,4,6,7,8,10,11,13,15,17,18,19,20,23 //String number1 = "21999"; //String number2 = "24"; //PASS****2******* via final test 1,3,5,23 //String number1 = "1"; //String number2 = "1"; //PASS***10******** via final test 2,3,4,23 //String number1 = "1"; //String number2 = "9"; //PASS***95759******** via final test 3,5,6,7,8,10,11,12,23 //String number1 = "95427"; //String number2 = "332"; //PASS*****9719****** via final test 3,4,5,6,7,8,10,11,12,23 //String number1 = "9647"; //String number2 = "72"; //PASS****100119******* via final test 3,4,6,7,8,10,11,13,15,17,18,19,20,23 //String number1 = "99647"; //String number2 = "472"; // **PASS** 10009 via final test 3,4,6,7,8,10,11,13,15,17,18,19,20,23 //String number1 ="9947"; //String number2 = " 62"; //PASS via final test 3,4,6,7,8,10,11,13,15,17,18 //***PASS 22023 //String number1 = "21999"; //String number2 = "24"; //PASS via final test 3,4,6,7,8,21,23 //String number1 = "99"; //String number2 = "9"; //PASS //String number1 = "999999999999999999999999999999999999"; //String number2 = "324235435345435324234324234324"; //FAIL //String number1 = "99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999987678687687687666666666666666666666666666666666666666"; //String number2 = "324235435345435324234324234324"; start(); System.out.println(number1 + "+" + number2 + "= " + addition(number1, number2)); System.out.println(number1 + "+" + number2 + "= " + grandTotal); stop(); System.out.println("Elapsed time in seconds: " + getElapsedTimeInSeconds()); } public static String addition(String number1, String number2) { lengthFirstNumber=(number1.length()); lengthSecondNumber=(number2.length()); if (lengthFirstNumber==0 && lengthSecondNumber==0) { System.out.println("final test 0"); if (firstDigitTotalDigits==0) { System.out.println("FINAL TEST 1"); return grandTotal; } else { System.out.println("FINAL TEST 2"); grandTotal = "1" + grandTotal; return grandTotal; } } try { System.out.println("final test 3"); lastDigitFirstNumber=number1.substring(lengthFirstNumber-1); lastDigitSecondNumber=number2.substring(lengthSecondNumber-1); total = Integer.valueOf(lastDigitFirstNumber) + Integer.valueOf(lastDigitSecondNumber) + firstDigitTotalDigits; if ((Integer.valueOf(lastDigitFirstNumber) + Integer.valueOf(lastDigitSecondNumber) + firstDigitTotalDigits)>=10) { firstDigitTotalDigits = (int)total/10; lastDigitTotalDigits=total%10; grandTotal = Integer.toString(lastDigitTotalDigits) + grandTotal; addition(number1.substring(0, (lengthFirstNumber-1)), number2.substring(0, (lengthSecondNumber-1))); } else { grandTotal = Integer.toString(total) + grandTotal; firstDigitTotalDigits=0; addition(number1.substring(0, (lengthFirstNumber-1)), number2.substring(0, (lengthSecondNumber-1))); } } catch (NumberFormatException | StringIndexOutOfBoundsException s) { System.out.println("final test 6"); try { System.out.println("final test 7"); if (number1.length()>number2.length()) { System.out.println("final test 8"); number=number1; lastDigitRemainingPortion = lastDigitNumberOneRemainingPortion; lengthNumber=lengthFirstNumber; lastDigitNumber=lastDigitSecondNumber; } if (number2.length()>number1.length()) { System.out.println("final test 9"); number=number2; lastDigitRemainingPortion = lastDigitNumberTwoRemainingPortion; lengthNumber=lengthSecondNumber; lastDigitNumber = lastDigitFirstNumber; } if (number!=null) { System.out.println("final test 10!!!!!!!!"); if(number.length()>1) { System.out.println("final test 11 "); lastDigitRemainingPortion = (Integer.valueOf(number)%10); total = Integer.valueOf(lastDigitRemainingPortion) + firstDigitTotalDigits; if (total<10) { System.out.println("final test 12"); remainingPortionInteger = (int) (Integer.valueOf(number) / 10); remainingPortionString = Integer.toString(remainingPortionInteger); remainingPortion = remainingPortionString.substring(0, (lengthNumber-1)); grandTotal = remainingPortion + Integer.toString(total) + grandTotal; return grandTotal; } else { System.out.println("final test 13"); firstDigitTotalDigits=(int) total/10; lastDigitTotalDigits=total%10; remainingPortionInteger = (int) (Integer.valueOf(number) / 10); lastDigitRemainingPortion =Integer.valueOf(Integer.valueOf(number)%10); if (((Integer.valueOf(number.substring((lengthNumber-1)))+firstDigitTotalDigits)<10)) { total = lastDigitRemainingPortion + firstDigitTotalDigits; grandTotal = remainingPortionInteger + total + grandTotal; } else { System.out.println("final test 15"); if(lengthNumber==1) { System.out.println("final test 16"); remainingPortionInteger=Integer.valueOf(number); total = remainingPortionInteger + firstDigitTotalDigits; grandTotal = Integer.toString(total) + grandTotal; } else { System.out.println("final test 17"); firstDigitTotalDigits=1; remainingPortionInteger = (int) (Integer.valueOf(number))/10; temp=Integer.valueOf(number)%10; lastDigitRemainingPortion = remainingPortionInteger % 10; do { grandTotal = Integer.toString(total) + grandTotal; remainingPortionInteger = remainingPortionInteger/10; total = lastDigitRemainingPortion + firstDigitTotalDigits; //total=0; // other option lastDigitRemainingPortion = remainingPortionInteger%10; }while(lastDigitRemainingPortion==9); System.out.println("final test 19"); remainingPortionString=Integer.toString(remainingPortionInteger); if (temp==9) { System.out.println("final test 20"); total = Integer.valueOf(remainingPortionString) + firstDigitTotalDigits; grandTotal = total + "0"+ grandTotal; return grandTotal; } } //end of else final test 17 } //end of else final test 15 } //end of else final test 13 } //this would be for if(number.length()>1) else { System.out.println("final test 21"); total = Integer.valueOf(lastDigitNumber) + firstDigitTotalDigits; remainingPortionInteger= Integer.valueOf(number); total = remainingPortionInteger + firstDigitTotalDigits; grandTotal = total + grandTotal; return grandTotal; } }// this is the end of number!=null } //end try catch (NumberFormatException n) { System.out.println("final test 22"); } System.out.println("final test 17"); grandTotal = total + grandTotal; return grandTotal; } //end of catch (NumberFormatException | StringIndexOutOfBoundsException s) System.out.println("final test 23"); return "test"; } //end of main method }//end of class main