Java

Create more Complex JSON Document

See more JSON Examples

Sample code to create the following JSON document:

    {  
        "Title": "The Cuckoo's Calling",  
        "Author": "Robert Galbraith",  
        "Genre": "classic crime novel",  
        "Detail": {  
            "Publisher": "Little Brown",  
            "Publication_Year": 2013,  
            "ISBN-13": 9781408704004,  
            "Language": "English",  
            "Pages": 494  
        },  
        "Price": [  
            {  
                "type": "Hardcover",  
                "price": 16.65  
            },  
            {  
                "type": "Kindle Edition",  
                "price": 7.00  
            }  
        ]  
    }  

Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    CkJsonObject json = new CkJsonObject();

    // The only reason for failure in the following lines of code would be an out-of-memory condition..

    // An index value of -1 is used to append at the end.
    int index = -1;

    success = json.AddStringAt(-1,"Title","The Cuckoo's Calling");
    success = json.AddStringAt(-1,"Author","Robert Galbraith");
    success = json.AddStringAt(-1,"Genre","classic crime novel");

    // Let's create the Detail JSON object:
    CkJsonObject detail = new CkJsonObject();
    json.AppendObject2("Detail",detail);

    success = detail.AddStringAt(-1,"Publisher","Little Brown");
    success = detail.AddIntAt(-1,"Publication_Year",2013);
    success = detail.AddNumberAt(-1,"ISBN-13","9781408704004");
    success = detail.AddStringAt(-1,"Language","English");
    success = detail.AddIntAt(-1,"Pages",494);

    // Add the array for Price
    CkJsonArray aPrice = new CkJsonArray();
    json.AppendArray2("Price",aPrice);

    // Entry in aPrice will be a JSON object.

    // Append a new/empty ojbect to the end of the aPrice array.
    CkJsonObject priceObj = new CkJsonObject();

    aPrice.AddObjectAt2(-1,priceObj);
    success = priceObj.AddStringAt(-1,"type","Hardcover");
    success = priceObj.AddNumberAt(-1,"price","16.65");

    aPrice.AddObjectAt2(-1,priceObj);
    success = priceObj.AddStringAt(-1,"type","Kindle Edition");
    success = priceObj.AddNumberAt(-1,"price","7.00");

    json.put_EmitCompact(false);
    System.out.println(json.emit());
  }
}