如何将字符串值存储到数组字符串，并可以在另一个类中调用该数组以在单行中打印为字符串

Question

I'm trying to do some work on Mobile apps. I have parser in class: A

for (int i = 0; i < jArray3.length(); i++) {
    news_id = Integer.parseInt((json_data.getString("news_id")));
    news_title = json_data.getString("news_title");
}

I have to parse and get value of id and title. Now I want to store this title in array and call another class. In that class we have to convert that array into String so that i can print that title value in single line.

How can I implement this can u post some code for me?

Answer 1

Based on my understanding of your question, I assume the following snippet only you are looking for.

String[] parsedData = new String[2];
for (int i = 0; i < jArray3.length(); i++) {
    news_id = Integer.parseInt((json_data.getString("news_id")));
news_title = json_data.getString("news_title");
}

parsedData[0] = news_id;
parsedData[1] = news_title;

DifferentCls diffCls = new DifferentCls(data);
System.out.println(diffCls.toString());

DifferentCls.java

private String[] data = null;

public DifferentCls(String[] data) {
 this.data = data;
}

public String toString() {
 return data[1];
}

Answer 2

 news_title = json_data.getString("news_title");

 Add line after the above line to add parse value  int0 string array

String[] newRow = new String[] {news_id ,news_title};

//Convert array to String

  String asString = Arrays.toString(newRow ) 

Answer 3

1. I am assuming that you have more than one title to be stored.

I am using ArrayList<String> which is more flexible than Array .

Creating an ArrayList and Storing all the title values:

ArrayList<String> titleArr = new ArrayList<String>();

for (int i = 0; i < jArray3.length(); i++) {
    news_id = Integer.parseInt((json_data.getString("news_id")));
    news_title = json_data.getString("news_title");

    titleArr.add(news_title);
}

2. Now sending it to another class , where you need to Show all the titles in Single Line.

new AnotherClass().alistToString(titleArr);  


// This line should be after the for-loop
// alistToString() is a method in another class          

3. Another class structure.

 public class AnotherClass{

      //.................. Your code...........


       StringBuilder sb = new StringBuilder();
       String titleStr = new String();

    public void alistToString(ArrayList<String> arr){

    for (String s : arr){

     sb.append(s+"\n");   // Appending each value to StrinBuilder with a space.

          }

    titleStr = sb.toString();  // Now here you have the TITLE STRING....ENJOY !!

      }

    //.................. Your code.............

   }