I have a method named getPayDetails() which return type is a string
pay.getPaymentDetails() of which return type is a string and it returns the below string
[
   {
      "mcTtid":201657083281,
      "cardLast4Digits":"0887",
      "paymentType":"CREDIT CARD",
      "originalPaymentCategory":{
         "code":"Q",
         "name":"CREDIT CARD"
      }
   },
   {
      "veTtid":21656148003,
      "cardLast4Digits":"4777",
      "paymentType":"GIFT CARD",
      "originalPaymentCategory":{
         "code":"Q",
         "name":"GIFT CARD"
      }
   },
   {
      "mcTtid":201625819,
      "cardLast4Digits":"8388",
      "paymentType":"GIFT CARD",
      "originalPaymentCategory":{
         "code":"w",
         "name":"GIFT CARD"
      }
   }
]
I need to extract the value of the attribute paymentType from the above string so the value of attribute paymentType in the above string is CREDIT CARD in a separate string variable. how can I do this?
 
     
    