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私はJavaプログラムで2つの配列を繰り返し処理し、最初の配列と2番目の配列を比較して一致するものを探しています。一致しないすべての数値/文字列を配列リストとして返す必要があります。ArrayIndexOutOfBoundsException 完了しましたが、エラーが発生する理由がわかりません。これは私のコードです:

package test;

import java.awt.List;
import java.io.IOException;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;

public class ArrayComparer {
    public static ArrayList<String> ArrayComparer(String[] arrayOne, String[] arrayTwo){
//      if one is bigger than start by comparing the smaller one to the bigger one
//      as if it were the other way the bigger one would run out over numbers to compare
        
//      declaring the array for holding all the non-matching telephone numbers to be returned
         ArrayList<String> nonMatchingTelephoneNumbers = new ArrayList<String>();

        for(int i = 0; i<arrayOne.length; i++){
            int strikes = 0;
//          for each value of the first one it should go through all the values of the second and compare each
            for(int i2 = 0; i<arrayTwo.length; i2++){
                if(arrayOne[i] != arrayTwo[i2]){
                    strikes++;
                    if(strikes == arrayTwo.length){
//                      meaning it has gone through ALL of arrayTwo and couldn't find a match
                        nonMatchingTelephoneNumbers.add(arrayOne[i]);
                    }
                }
            }
                
        }
        return nonMatchingTelephoneNumbers;
        
        
    }
    public static void main(String[] args) throws IOException {
//          declaring the first list of telephone number
        String[] ArrayListOne;
//          declaring the second list of telephone numbers
        String[] ArrayListTwo;
//      splitting up the user input of telephone numbers by commas
        
        Scanner myObj = new Scanner(System.in);  // Create a Scanner object
        System.out.println("Enter your first array of telephone numbers, split by commas");
        
        ArrayListOne = myObj.nextLine().split(",");  // Read user input
        
     
//      once it has iterated through all of the telephone numbers in the first list, ask for the second list
        Scanner myObj2 = new Scanner(System.in);  // Create a Scanner object
        System.out.println("Enter your second array of telephone numbers, split by commas");
        
        ArrayListTwo = myObj2.nextLine().split(",");  // Read the second user input

//      once it has collected and sorted all the user input, the ArrayCOmparer method should be called 
//      to compare them and return the telephone numbers that DON'T MATCH
        
        ArrayComparer(ArrayListOne, ArrayListTwo);
        
    }

}

エラーは22 行目にあり、実行するまで22 行目にエラーif(arrayOne[i] != arrayTwo[i2]){があるとは表示されません。コンソールエラーが発生する理由を教えてください。

4

1 に答える 1

0

こんにちは、これがエラーの原因だと思います

        for(int i2 = 0; i<arrayTwo.length; i2++){

次のものに置き換える必要があります。

        for(int i2 = 0; i2<arrayTwo.length; i2++){
于 2021-01-15T03:58:03.190 に答える