Fetching values from JSON into java variables

HI,
I have the following Json in a String Object in java:

{
    "resCode": 200,
    "resMessage": "Success",
    "interactionId": "65aaeec4-5f3a-45c8-b842-cd27177402b3",
    "interationType": "FlightSearch",
    "sessionId": "83c172f7-a379-4737-926d-0f016be4c59c",
    "response": {
        "request": {
            "tripType": "ONEWAY",
            "tripList": [
                {
                    "origin": "DEL",
                    "destination": "BOM",
                    "departureDate": "2014-03-26"
                }
            ],
            "noOfAdults": 1,
            "noOfChildren": 0,
            "noOfInfants": 0,
            "travelClass": "Economy",
            "showOnlyRefundableFlights": false,
            "showOnlyNonStopFlights": false,
            "hourRanges": null,
            "domain": null
        },
        "searchResults": {
		...
		

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           I need to take out the value of response node... from which i need to pick out each of tripType , origin, destination, departureDate,....
            into local variables.
            
            How do i do it ?

Thanks