在段落数组中查找多组给定单词

Question

我正在字符串数组中搜索单词，如果找到我想要 return 他们的行。我试图将搜索到的输入划分在一个数组中，然后在段落数组中逐行搜索它。这实际上行不通。

public static void main(String[] args) {
            String paragraph[] = new String[10];
            String toBeSearched;
            String curSearch;
            boolean intIndex = false ;
            paragraph[0] = "Hello my name is";
            paragraph[1] = "Jack the reaper";
            paragraph[2] = "what up";
            
            System.out.printf("enter string:");
            Scanner myScanner = new Scanner(System.in);
            toBeSearched = myScanner.nextLine();
           
        String[] divide = toBeSearched.split(" ");
        
       
        for(int j = 0 ;j <=10 ; j++) {
            
            curSearch = divide[j];
            
            for (int k = 0; k <=paragraph[j].length() ; k++) {
                    
                    intIndex = paragraph[j].contains(curSearch);

                    if(intIndex == true) {
                        System.out.printf("Found at line %d \n",j );        
                    } 
            }   

        }

假设我一次最多可以搜索 10 个词。

假设用户输入：“Hello name the up” 我想要答案：在第 1 行在第 1 行在第 2 行在第 3 行

如果我在该段落的第二个或第三个索引中请求一个词，它不起作用我不明白为什么（没有收到错误消息）

Answer 1

这是一个工作代码，将其与您的代码进行比较并找出问题所在：

public static void main(String[] args)


{
     String paragraph[] = {"Hello my name is","Jack the reaper", "what up"};
     String toBeSearched;
     String curSearch;
     boolean intIndex = false ;
    
     
     System.out.printf("enter string:");
     Scanner myScanner = new Scanner(System.in);
     toBeSearched = myScanner.nextLine();
    
 String[] divide = toBeSearched.split(" ");
 

 for(int i = 0; i < divide.length ; i ++) {
     String word = divide[i];
     for(int y = 0; y < paragraph.length ; y++) {
         if(paragraph[y].contains(word)) {
             System.out.println(word+ "found at line: "+ y);
         }
     }
     
 }

}

在段落数组中查找多组给定单词

Finding multiple set of given words in a paragraph array

java

arrays

search

find