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8287838: Update Float and Double to use snippets

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Reviewed-by: alanb
This commit is contained in:
Joe Darcy 2022-06-06 21:26:25 +00:00
parent a277590c89
commit 0e06bf3b04
2 changed files with 8 additions and 7 deletions
src/java.base/share/classes/java/lang
Double.javaFloat.java

11
src/java.base/share/classes/java/lang/Double.java

@ -640,7 +640,7 @@ public final class Double extends Number
* a {@code NumberFormatException} be thrown, the regular * a {@code NumberFormatException} be thrown, the regular
* expression below can be used to screen the input string: * expression below can be used to screen the input string:
* *
* <pre>{@code * {@snippet lang="java" :
* final String Digits = "(\\p{Digit}+)"; * final String Digits = "(\\p{Digit}+)";
* final String HexDigits = "(\\p{XDigit}+)"; * final String HexDigits = "(\\p{XDigit}+)";
* // an exponent is 'e' or 'E' followed by an optionally * // an exponent is 'e' or 'E' followed by an optionally
@ -679,13 +679,14 @@ public final class Double extends Number
* ")[pP][+-]?" + Digits + "))" + * ")[pP][+-]?" + Digits + "))" +
* "[fFdD]?))" + * "[fFdD]?))" +
* "[\\x00-\\x20]*");// Optional trailing "whitespace" * "[\\x00-\\x20]*");// Optional trailing "whitespace"
* * // @link region substring="Pattern.matches" target ="java.util.regex.Pattern#matches"
* if (Pattern.matches(fpRegex, myString)) * if (Pattern.matches(fpRegex, myString))
* Double.valueOf(myString); // Will not throw NumberFormatException * Double.valueOf(myString); // Will not throw NumberFormatException
* // @end
* else { * else {
* // Perform suitable alternative action * // Perform suitable alternative action
* } * }
* }</pre> * }
* *
* @param s the string to be parsed. * @param s the string to be parsed.
* @return a {@code Double} object holding the value * @return a {@code Double} object holding the value
@ -1099,13 +1100,13 @@ public final class Double extends Number
* <p>In all other cases, let <i>s</i>, <i>e</i>, and <i>m</i> be three * <p>In all other cases, let <i>s</i>, <i>e</i>, and <i>m</i> be three
* values that can be computed from the argument: * values that can be computed from the argument:
* *
* <blockquote><pre>{@code * {@snippet lang="java" :
* int s = ((bits >> 63) == 0) ? 1 : -1; * int s = ((bits >> 63) == 0) ? 1 : -1;
* int e = (int)((bits >> 52) & 0x7ffL); * int e = (int)((bits >> 52) & 0x7ffL);
* long m = (e == 0) ? * long m = (e == 0) ?
* (bits & 0xfffffffffffffL) << 1 : * (bits & 0xfffffffffffffL) << 1 :
* (bits & 0xfffffffffffffL) | 0x10000000000000L; * (bits & 0xfffffffffffffL) | 0x10000000000000L;
* }</pre></blockquote> * }
* *
* Then the floating-point result equals the value of the mathematical * Then the floating-point result equals the value of the mathematical
* expression <i>s</i>&middot;<i>m</i>&middot;2<sup><i>e</i>-1075</sup>. * expression <i>s</i>&middot;<i>m</i>&middot;2<sup><i>e</i>-1075</sup>.

4
src/java.base/share/classes/java/lang/Float.java

@ -922,13 +922,13 @@ public final class Float extends Number
* <p>In all other cases, let <i>s</i>, <i>e</i>, and <i>m</i> be three * <p>In all other cases, let <i>s</i>, <i>e</i>, and <i>m</i> be three
* values that can be computed from the argument: * values that can be computed from the argument:
* *
* <blockquote><pre>{@code * {@snippet lang="java" :
* int s = ((bits >> 31) == 0) ? 1 : -1; * int s = ((bits >> 31) == 0) ? 1 : -1;
* int e = ((bits >> 23) & 0xff); * int e = ((bits >> 23) & 0xff);
* int m = (e == 0) ? * int m = (e == 0) ?
* (bits & 0x7fffff) << 1 : * (bits & 0x7fffff) << 1 :
* (bits & 0x7fffff) | 0x800000; * (bits & 0x7fffff) | 0x800000;
* }</pre></blockquote> * }
* *
* Then the floating-point result equals the value of the mathematical * Then the floating-point result equals the value of the mathematical
* expression <i>s</i>&middot;<i>m</i>&middot;2<sup><i>e</i>-150</sup>. * expression <i>s</i>&middot;<i>m</i>&middot;2<sup><i>e</i>-150</sup>.