title: how to put json string into list in java
body: <p>I'm getting a <code>JSON array</code> in string like </p>
  
  <pre><code>[ { "id":"ca.Primary_Diagnosis_Dt",
      "field":"ca.Primary_Diagnosis_Dt",
      "type":"date",
      "input":"text",
      "operator":"not_equal",
      "value":"2016/06/07"
    },
    { "id":"ca.Clinical_Stage",
      "field":"ca.Clinical_Stage",
      "type":"integer",
      "input":"select",
      "operator":"equal",
      "value":"I"
    }
  ]
  </code></pre>
  
  <p>i just want to save the value of id ,operator and value in <code>LIST</code> please help</p>