android - Add a "," in a string where in it there is this: "}{" -

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I am working in an Android app and I am in the "jsonstring" in the first "} {" between "," I can work with string # split () for example I have: 

  {"field1": "a", "field2": "abcbab", "field3" : "Field1": "field2": "field2": "faff", "field 3": 25} {"field 1": "A", "field 2": "fede", "field 3" : 12}

How can I do that?

Try this: 

  string newJsonStr = yourJsonStr.replaceAll (" \\} \\ s * \\ {","}, {");

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