Question

I am working on a Single choice and Multiple choice test.

I have couple of questions and 4 answers for each question.

I am shuffling the answers as each answer is assigned to radio button.
This is how i am shuffling the arraylist where Random is a arraylist with items and r1,r2,r3,r4 are radio buttons.

random.add(val);
Collections.shuffle(random);


r1.setText(random.get(0));
r2.setText(random.get(1));
r3.setText(random.get(2));
r4.setText(random.get(3));

I am able to display the answers in jumbled way but when i select the answer i need to show that the answer is correct or wrong.

Sample question and options.
1. which language is used for android programming?
 A.PHP
 B.JAVA
 C.C
 D.C++

Correct answer is B i need to display that correct answer is B.

How to acheive this.

EDIT:
I have tried this:

Onclick of each radio button assign the value A and compare the value with xml value if its correct display correct but when i jumble its will not work.

EDIT 2
xml

<Question no="1" text="Which Programming language is used in android develoment" type="SCA" noc="4" jumble="NO" correctans="PHP">
<choice a = "PHP" flag="A"> 
<choice b = "JAVA" flag="B"> 
<choice c = "C" flag="C"> 
<choice d = "C++" flag="D"> 

Answer 1

Here is a somewhat naive solution but it should work.

class Question {
    String message;
    String answer;
    List<String> options; //"Java", "PHP", etc
}

Shuffle the keys of the Map in your Question object
In your radio buttons, do something like r1.setText(random.get(0))

On click, do

String choice = null;
for (RadioButton rb : rBtns) {
    if (rb.isSelected) {
        choice = rb.getText(); break();
    }
}

if (choice.equals(question.getAnswer))
    return true; //correct
else
    return false; //wrong