The input begins with the number \$t\$ of test cases in a single line  (\$t \le 10\$). In each of the next t lines there are two or more  numbers \$m\$ and \$n\$ (\$1 \le m \le n \le 1000000000\$, \$n-m \le 100000\$) separated by a space. Print each number in a separate line which can be used further for  summation.Input250 100100 50 105Output5010010050105This is the code that I've written that is giving me output:import java.util.Scanner;import java.util.StringTokenizer;public class Generation {    public static void main(String[] str) {        Scanner keyboard = new Scanner(System.in);        int inputSize;        do {            System.out.println(Enter the value of T Size);            inputSize = keyboard.nextInt();            keyboard.nextLine();            if (inputSize < 2 || inputSize > 10) {                System.out.println(Not a Valid Input Size);            }        } while (inputSize < 2 || inputSize > 10);        String[] inputValue = new String[inputSize];        int tokenCount = 0;        for (int i = 0; i < inputSize; i++) {            System.out.println(Enter the inputs);            inputValue[i] = keyboard.nextLine();            StringTokenizer strToken = new StringTokenizer(inputValue[i],  );            tokenCount += strToken.countTokens();        }        keyboard.close();        //suppose this is 2nd part         int[] splitedString = new int[tokenCount];        int tempTokenCount = 0;        for (int i = 0; i < inputSize; i++) {            String[] tempSplitArray = inputValue[i].split( );            for (int j = 0; j < tempSplitArray.length; j++) {                splitedString[tempTokenCount] = Integer                        .parseInt(tempSplitArray[j]);                tempTokenCount++;            }        }        /*for (String s : inputValue) {            System.out.println(s);        }*/        for (Integer s : splitedString) {            System.out.println(s);        }    }}How can I optimize the 2nd part where I have to use two for loop which result in \$O(n^2)\$ time complexity? What is the workaround for such situations?
Split function while reading multiple lines
java;performance