9 lines
969 B
XML
9 lines
969 B
XML
<?xml version="1.0"?>
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<clause number="13" title="Conversions">
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<paragraph>A conversion enables an expression of one type to be treated as another type. Conversions can be implicit or explicit, and this determines whether an explicit cast is required. <example>[Example: For instance, the conversion from type <keyword>int</keyword> to type <keyword>long</keyword> is implicit, so expressions of type <keyword>int</keyword> can implicitly be treated as type <keyword>long</keyword>. The opposite conversion, from type <keyword>long</keyword> to type <keyword>int</keyword>, is explicit and so an explicit cast is required. <code_example><![CDATA[
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int a = 123;
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long b = a; // implicit conversion from int to long
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int c = (int) b; // explicit conversion from long to int
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]]></code_example>end example]</example> Some conversions are defined by the language. Programs may also define their own conversions (<hyperlink>13.4</hyperlink>). </paragraph>
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</clause>
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