Examples of org.apache.wink.json4j.JSONObject.optDouble()

org.apache.wink.json4j.JSONObject.optDouble()
Utility method to obtain the specified key as a 'double' value Only values of Number will be converted to double. all other values will return Double.NaN. Provided for compatibility to other JSON models. @param key The key to look up. @return A double value if the value stored for key is an instance of Number.

    public void test_optDouble() {
        Exception ex = null;


        try {
            JSONObject jObject = new JSONObject("{\"double\":1}");
            assertTrue(jObject.optDouble("double") == 1);
            assertTrue(jObject.optDouble("double2", 2) == 2);
        } catch (Exception ex1) {
            ex = ex1;
            ex.printStackTrace();
        }

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        Exception ex = null;


        try {
            JSONObject jObject = new JSONObject("{\"double\":1}");
            assertTrue(jObject.optDouble("double") == 1);
            assertTrue(jObject.optDouble("double2", 2) == 2);
        } catch (Exception ex1) {
            ex = ex1;
            ex.printStackTrace();
        }
        assertTrue(ex == null);

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    public void test_optDoubleNegative() {
        Exception ex = null;


        try {
            JSONObject jObject = new JSONObject("{\"double\":-1}");
            assertTrue(jObject.optDouble("double") == -1);
        } catch (Exception ex1) {
            ex = ex1;
            ex.printStackTrace();
        }
        assertTrue(ex == null);

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    public void test_optDoubleWithDecimal() {
        Exception ex = null;


        try {
            JSONObject jObject = new JSONObject("{\"double\":100.959}");
            assertTrue(jObject.optDouble("double") == 100.959);
        } catch (Exception ex1) {
            ex = ex1;
            ex.printStackTrace();
        }
        assertTrue(ex == null);

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    public void test_optDoubleNegativeWithDecimal() {
        Exception ex = null;


        try {
            JSONObject jObject = new JSONObject("{\"double\":-100.959}");
            assertTrue(jObject.optDouble("double") == -100.959);
        } catch (Exception ex1) {
            ex = ex1;
            ex.printStackTrace();
        }
        assertTrue(ex == null);

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    public void test_optDoubleWithExponential() {
        Exception ex = null;


        try {
            JSONObject jObject = new JSONObject("{\"double\":100959e-3}");
            assertTrue(jObject.optDouble("double") == 100.959);
        } catch (Exception ex1) {
            ex = ex1;
            ex.printStackTrace();
        }
        assertTrue(ex == null);

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    public void test_optDoubleNegativeWithExponential() {
        Exception ex = null;


        try {
            JSONObject jObject = new JSONObject("{\"double\":-100959e-3}");
            assertTrue(jObject.optDouble("double") == -100.959);
        } catch (Exception ex1) {
            ex = ex1;
            ex.printStackTrace();
        }
        assertTrue(ex == null);

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