importorg.json.JSONObject;publicclassJsonExample{publicstaticvoidmain(String[]args){StringjsonString="{ \"name\":\"John\", \"age\":30 }";JSONObjectjsonObject=newJSONObject(jsonString);// 获取字符串Stringname=jsonObject.getString("name");System.out.println("Name: "+name);// 获取整数intag...
si le mappage n’existe pas ou ne peut pas être coéré à un int. Remarques Retourne la valeur mappée s’il name existe et est un int ou peut être coérée à un int, ou lève dans le cas contraire. Documentation Java pour org.json.JSONObject.getInt(java.lang.String). Les par...
}catch(Exception e) {thrownewJSONException("JSONObject["+ quote(key) +"] is not an int."); } } publicintoptInt(String key){returnthis.optInt(key,0); } 不难发现,二者区别如下: getInt()取值不正确或者类型不正确时会抛出异常,必须用try catch或者throw捕获 optInt()取值不正确时则会试图进行转...
JsonObjectvalues can beJsonObject,JsonArray,JsonString,JsonNumber,JsonValue.TRUE,JsonValue.FALSE,JsonValue.NULL. These values can be accessed using various accessor methods. In the above example 2, "John" can be got using String firstName = object.getString("firstName"); ...
Returns the value mapped by name if it exists and is an int or can be coerced to an int, or throws otherwise.
if the mapping doesn't exist or cannot be coerced to an int. Remarks Returns the value mapped bynameif it exists and is an int or can be coerced to an int, or throws otherwise. Java documentation fororg.json.JSONObject.getInt(java.lang.String). ...
在上面的示例代码中,我们首先将JSON字符串转换为JSONObject对象,然后通过getJSONArray方法获取名为"numbers"的int数组。接着,我们将int数组中的元素依次取出并存储到一个新的int数组中。最后,我们遍历新的int数组并打印出数组中的元素。 流程图 下面是使用mermaid语法绘制的获取int数组的流程图: ...
: Integer.parseInt((String)object); }catch(Exception e) {thrownewJSONException("JSONObject["+ quote(key) +"] is not an int."); } } publicintoptInt(String key){returnthis.optInt(key,0); } 不难发现,二者区别如下: getInt()取值不正确或者类型不正确时会抛出异常,必须用try catch或者throw捕获...
if the mapping doesn't exist or cannot be coerced to an int. Remarks Returns the value mapped bynameif it exists and is an int or can be coerced to an int, or throws otherwise. Java documentation fororg.json.JSONObject.getInt(java.lang.String). ...
1，错误用法一： if (name == "") { //do something } 2，错误...