String Manipulator 1 - str.startsWith(), keep in mind count!

package com.company;

import javafx.util.Pair;

import javax.xml.crypto.dsig.keyinfo.KeyValue;
import java.lang.reflect.Array;
import java.security.KeyStore;
import java.text.Collator;
import java.text.DecimalFormat;
import java.util.*;
import java.util.function.Predicate;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collector;
import java.util.stream.Collectors;


public class Main {



    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String string = scanner.nextLine();

        String input = "";
        while(!"End".equals(input = scanner.nextLine())){
            String[] tokens = input.split(" ");
            String command = tokens[0];

            switch (command){
                case "Translate":
                    String character = tokens[1];
                    String replacement = tokens[2];
                    string = string.replace(character, replacement);
                    System.out.println(string);
                    break;
                case "Includes":
                    String containingStr = tokens[1];
                    if(string.contains(containingStr)){
                        System.out.println("True");
                    }else{
                        System.out.println("False");
                    }
                    break;
                case "Start":
                    String startingStr = tokens[1];
                    if(string.startsWith(startingStr)){
                        System.out.println("True");
                    }else{
                        System.out.println("False");
                    }
                    break;
                case "Lowercase":
                    string = string.toLowerCase();
                    System.out.println(string);
                    break;
                case "FindIndex":
                    String characterSearch = tokens[1];
                    int charIdx = string.lastIndexOf(characterSearch);
                    System.out.println(charIdx);
                    break;
                case "Remove":
                    int startIdx = Integer.parseInt(tokens[1]);
                    int count = Integer.parseInt(tokens[2]);
                    string = new StringBuilder(string).replace(startIdx, startIdx + count, "").toString();
                    System.out.println(string);
                    break;
            }
        }
    }
}