How to escape special characters from JSON when assign it to Java String?

I'm trying to assign a value from JSON to Java String, but the JSON value is including some special characters \. When I was trying to assign it to the string it gave an error.

This is the JSON value:

"ValueDate":"\/Date(1440959400000+0530)\/"

This is how I trying to use it:

HistoryVO.setValueDate(DataUtil.getDateForUnixDate(historyJson.getString("ValueDate")));

or

If you have specific character, ( and ), use substring method to get the value.

    String value = "\\/Date(1440959400000+0530)\\/";
    int start = value.indexOf("(");
    int last = value.lastIndexOf("0");
    value = value.substring(start + 1, last + 1);
    System.out.println(value); <--- 1440959400000+0530

    DataUtil.getDateForUnixDate(value);

I don't know DataUtil.getDateForUnixDate() method, but take care of + character because of it is not number string.

Update

To remove / character use replace method.

    String value = "/Date(1440959400000+0530)/";
    value = value.replace("/", "");
    System.out.println(value);

output

Date(1440959400000+0530)