java - 基本java程序找不到符号错误

Question

我需要这个基本程序的帮助。我的 friend 给了我大部分代码，但没有给我导入语句。到了最后，它写着list.add(finalCombined.get(counter3)); ，它给了我一个错误。我得到的错误是

Cannot find Symbol 
Symbol: variable list
location: class ArrayUtils

我对此感到非常困惑。我添加了我认为需要的导入语句。谢谢

import java.util.ArrayList;
import java.util.Random;
import java.util.Collections;
import java.lang.String;

public class ArrayUtils {
    public void randomStrings(ArrayList<String> arrayList,int nbrOfStrings,int vowelCnt, int strSize){
        ArrayList <String> finalCombined = new ArrayList();
        ArrayList <String> finalCombined = new ArrayList();
        for (int cnt = 0; cnt < nbrOfStrings; cnt++)
        {
            int cnt2 = 0;
            int gn, size, vowelUsed;
            Random n1 = new Random();
            size = 122-96;
            //char cs[] = new char[strSize];
            //String cs;
            //cs = "";
            ArrayList <Character> cs = new ArrayList();
            int counter = 0;
            vowelUsed = 0;

            while (counter < 1)
            {
                vowelUsed = n1.nextInt(vowelCnt + 1);
                if (vowelUsed == 0)
                {
                }
                else
                {
                    counter = 2;
                }

            }

            while (cnt2 < (strSize - vowelUsed))
            {
                gn = n1.nextInt(size) + 97;

                if (gn == 97 | gn == 101 | gn == 105 | gn == 111 | gn == 117 | gn == 121)
                {
                }

                else
                {
                    cs.add((char)gn);
                    //cs += ((char)gn + "");
                    cnt2 ++;
                }
            }
            while (cnt2 < strSize)
            {
                gn = n1.nextInt(size) + 97;
                if (gn == 97 | gn == 101 | gn == 105 | gn == 111 | gn == 117 | gn == 121)
                {
                    cs.add((char)gn);
                    //cs += ((char)gn + "");
                    cnt2 ++;
                }
            }
            //int check;
            //check = list.add(cs[cnt]);
            Collections.shuffle(cs);

            String combined;
            combined = "";
            //System.out.println(cs);

            int counter2 = 0;
            while (counter2 < strSize)
            {
                combined += cs.get(counter2); 
                counter2 ++;
            }
            finalCombined.add(combined);
            counter2 = 0;
            combined = "";

        } // end # strings    

        for (int counter3 = 0; counter3 < nbrOfStrings; counter3++)
        {
            list.add(finalCombined.get(counter3));
        }

    } // end method
}

Answer 1

list.add(finalCombined.get(counter3));

您尚未声明任何名为 list 的变量，因此该行无法通过编译。

也许你的意思是

arrayList.add(finalCombined.get(counter3));

因为您的 randomStrings 方法有一个名为 arrayList 的参数，您根本没有使用该参数。