tempStr=“4 rolling3 stone4 like1 a2“ to “like a rolling stone“

package controller.test.online.main;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.Scanner;
import java.util.UUID;

/**
 * Created by wanzhongLiao on 2023/8/15.
 */
public class HuaWeiODTest {

    public static void main(String[] args) {
        System.out.println("Hello World!");

        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        ArrayList strings = new ArrayList<>();
        strings.add(s);
        String s1 = scanner.nextLine();
        strings.add(s1);

        StringBuilder stringBuilder = new StringBuilder();
        for (String string : strings) {
            stringBuilder.append(string);
        }

        String s2 = stringBuilder.toString();

//        String tempStr="4 rolling3 stone4 like1 a2";
        String transmitionCodeFroIndex = getTransmitionCodeFroIndex(s2);
        System.out.println(transmitionCodeFroIndex);
    }

    public static String getTransmitionCodeFroIndex(String srcStr){
        if (srcStr==null){
            return null;
        }
        if (srcStr.isEmpty()){
            return null;
        }
        String substring1 = srcStr.substring(0, 1);
        Integer integer1 = Integer.valueOf(substring1);
        if (!Character.isDigit(integer1)){
            return null;
        }
        if (integer1<=0 || integer1 >1000){
            return null;
        }

        String substring2 = srcStr.substring(1);
        String trim = substring2.trim();
        String[] splitStrArr = trim.split("\\s");
        int length = splitStrArr.length;
        ArrayList transmitionCodeArrayList = new ArrayList<>();
        for (int i = 0; i < length; i++) {
            String s = splitStrArr[i];
            String trim1 = s.trim();
            String substring = trim1.substring(trim1.length() - 1);
            Integer integer = Integer.valueOf(substring);
            if (Character.isDigit(integer)){
                TransmitionCode transmitionCode = new TransmitionCode();
                String s1 = UUID.randomUUID().toString();
                transmitionCode.setId(s1);
                transmitionCode.setName(trim1.substring(0,trim1.length()-1));
                transmitionCode.setPrefixIndex(integer);
                transmitionCodeArrayList.add(transmitionCode);
            }
        }

        transmitionCodeArrayList.sort(new Comparator() {
            @Override
            public int compare(TransmitionCode o1, TransmitionCode o2) {
                if (o1.getPrefixIndex()o2.getPrefixIndex()){
                    return -1;
                }
                return 0;
            }
        });

        StringBuilder stringBuilder = new StringBuilder();
        int countAppnd=0;
        for (TransmitionCode transmitionCode : transmitionCodeArrayList) {
            stringBuilder.append(transmitionCode);
            if (countAppnd>=transmitionCodeArrayList.size()){
                break;
            }
            stringBuilder.append(" ");
            countAppnd++;
        }

        String s = stringBuilder.toString();

        return s;
    }
}

class TransmitionCode{
    private String id;
    private String name;
    private Integer prefixIndex;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getPrefixIndex() {
        return prefixIndex;
    }

    public void setPrefixIndex(Integer prefixIndex) {
        this.prefixIndex = prefixIndex;
    }
}