Return more than one value from a function in Java

Question

How to return more than one value from a function in Java? Can anyone give sample code for doing this using tuples? I am not able to understand the concept of tuples.

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Answer 1

What if what you are returning are of different data types just like your situation. Or for example, Lets say you are returning a String name and an integer age. You can you JSON from the org.json library. You can get the jar at http://www.java2s.com/Code/Jar/j/Downloadjavajsonjar.htm

public JSONObject info(){
     String name = "Emil";
     int age = 25;
     String jsonString  ="{\"name\":\""+ name+"\",\"age\":"+ age +"}";
     JSONObject json = new JSONObject(jsonString);
     return json ;
}

Afterwards, if you want to get the data somewhere in your program, this is what you do:

//objectInstanceName is the name of the instantiated class
JSONObject jso = objectInstanceName.info();
String name = jso.getString("name");
int age = jso.getInt("age");
System.out.println(name + " is "+ age + " years old");

//Output will be like
Emil is 25 years old

Hope you try it. Or you can read more on JSON in java if you HAVEN'T.