Pattern panPattern = Pattern.compile("[A-Z]{5}[0-9]{4}[A-Z]{1}");
Pattern datePattern = Pattern.compile("[0-3][0-9][/][0-1][0-9][/][0-9]{4}");
Pattern datePattern2 = Pattern.compile("[0-3][0-9][-][0-1][0-9][-][0-9]{4}");

int dateIndex = 0;
int panIndex = 0;

if(type.equalsIgnoreCase("PAN Card")) {
    int i = 0;
    while ( i < jsonObject.names().length() ) {
        if(panPattern.matcher(jsonObject.get(jsonObject.names().getString(i)).toString()).matches()) {
            formData.addView(generateLayout("PAN Number","PAN Number: "+jsonObject.get(jsonObject.names().getString(i)).toString()));
            panIndex = i;
            break;
        }
        else {
            i++;
        }
    }
    i = 0;
    while (i < jsonObject.names().length()) {
        if( datePattern.matcher(jsonObject.get(jsonObject.names().getString(i)).toString()).matches() ) {
            formData.addView(generateLayout("DOB:","DOB: "+jsonObject.get(jsonObject.names().getString(i)).toString()));
            dateIndex = i;
            break;
        }
        else if( datePattern2.matcher(jsonObject.get(jsonObject.names().getString(i)).toString()).matches() ) {
            formData.addView(generateLayout("DOB:","DOB: "+jsonObject.get(jsonObject.names().getString(i)).toString()));
            dateIndex = i;
            break;
        }
        else {
            i++;
        }
    }
    boolean old = (panIndex - dateIndex > 0);
    if(!old) {
        i = 0;
        while (i < jsonObject.names().length()) {
            if (jsonObject.get(jsonObject.names().getString(i)).toString().contains("Name")) {
                formData.addView(generateLayout("Name", "Name: " + jsonObject.get(jsonObject.names().getString(i + 1)).toString()));
                break;
            } else {
                i++;
            }
        }
        i = 0;
        while (i < jsonObject.names().length()) {
            if (jsonObject.get(jsonObject.names().getString(i)).toString().contains("Name") && jsonObject.get(jsonObject.names().getString(i)).toString().contains("Father")) {
                formData.addView(generateLayout("Father's Name", "Father's Name: " + jsonObject.get(jsonObject.names().getString(i + 1)).toString()));
                break;
            } else {
                i++;
            }
        }
    }
    else {
        formData.addView(generateLayout("Name", "Name: " + jsonObject.get(jsonObject.names().getString(dateIndex - 2)).toString()));
        formData.addView(generateLayout("Father's Name", "Father's Name: " + jsonObject.get(jsonObject.names().getString(dateIndex - 1)).toString()));
    }
}
else if(type.equalsIgnoreCase("aadhar card")) {
    int i = 0;
    int nmIndex = 1;
    while(i < jsonObject.names().length()) {
        if(jsonObject.get(jsonObject.names().getString(i)).toString().toLowerCase().contains("year") && jsonObject.get(jsonObject.names().getString(i)).toString().toLowerCase().contains("birth")) {
            Pattern pattern = Pattern.compile("[0-9]{4}");
            Matcher matcher = pattern.matcher(jsonObject.get(jsonObject.names().getString(i)).toString());
            if(matcher.find()) {
                formData.addView(generateLayout("Year Of Birth: ", "Year Of Birth: " + matcher.group(0)));
                nmIndex = i - 1;
                break;
            }
        }
        else if( jsonObject.get(jsonObject.names().getString(i)).toString().toLowerCase().contains("dob") || ( jsonObject.get(jsonObject.names().getString(i)).toString().toLowerCase().contains("birth") && jsonObject.get(jsonObject.names().getString(i)).toString().toLowerCase().contains("date") ) ) {
            Pattern pattern = Pattern.compile("[0-3][0-9][-][0-1][0-9][-][0-9]{4}");
            Pattern pattern2 = Pattern.compile("[0-3][0-9][/][0-1][0-9][/][0-9]{4}");
            Matcher matcher = pattern.matcher(jsonObject.get(jsonObject.names().getString(i)).toString());
            Matcher matcher2 = pattern2.matcher(jsonObject.get(jsonObject.names().getString(i)).toString());
            if(matcher.find()) {
                formData.addView(generateLayout("Date of Birth: ", "Date of Birth: " + matcher.group(0)));
                nmIndex = i - 1;
                break;
            }
            else if(matcher2.find()) {
                formData.addView(generateLayout("Date of Birth: ", "Date of Birth: " + matcher2.group(0)));
                nmIndex = i - 1;
                break;
            }
        }
        else {
            i++;
        }
    }
    formData.addView(generateLayout("Name","Name: "+jsonObject.get(jsonObject.names().getString(nmIndex)).toString()));
    i = 0;
    while ( i < jsonObject.names().length() ) {
        String str = jsonObject.get(jsonObject.names().getString(i)).toString().replaceAll(" ","");

        Pattern pattern = Pattern.compile("[2-9][0-9]{11}");
        Matcher matcher = pattern.matcher(str);
        if(matcher.find())
        {
            formData.addView(generateLayout("Aadhar number","Aadhar Number: "+matcher.group(0)));
            break;
        }
        else {
            i++;
        }
    }
    i = 0;
    while ( i < jsonObject.names().length() ) {
        if( jsonObject.get(jsonObject.names().getString(i)).toString().toLowerCase().contains("female") ) {
            formData.addView(generateLayout("Gender","Gender: Female"));
            break;
        }
        else if ( jsonObject.get(jsonObject.names().getString(i)).toString().toLowerCase().contains("male") ) {
            formData.addView(generateLayout("Gender","Gender: Male"));
            break;
        }
        else {
            i++;
        }
    }
}