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8157724: Improve javadoc tag usage in java.math

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Reviewed-by: bpb
This commit is contained in:
Joe Darcy 2016-05-24 13:51:35 -07:00
parent af7a591d39
commit 072a878dbb
2 changed files with 73 additions and 57 deletions
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101
jdk/src/java.base/share/classes/java/math/BigDecimal.java
View File

@ -55,7 +55,7 @@ import java.util.Arrays;
* object to the operation. In either case, eight <em>rounding
* modes</em> are provided for the control of rounding. Using the
* integer fields in this class (such as {@link #ROUND_HALF_UP}) to
* represent rounding mode is largely obsolete; the enumeration values
* represent rounding mode is deprecated; the enumeration values
* of the {@code RoundingMode} {@code enum}, (such as {@link
* RoundingMode#HALF_UP}) should be used instead.
*
@ -93,7 +93,7 @@ import java.util.Arrays;
* <p>In general the rounding modes and precision setting determine
* how operations return results with a limited number of digits when
* the exact result has more digits (perhaps infinitely many in the
* case of division) than the number of digits returned.
* case of division and square root) than the number of digits returned.
*
* First, the
* total number of digits to return is specified by the
@ -196,18 +196,19 @@ import java.util.Arrays;
* {@code BigDecimal} value; for example [19, 2] is the
* {@code BigDecimal} numerically equal to 0.19 having a scale of 2.
*
* <p>Note: care should be exercised if {@code BigDecimal} objects
* are used as keys in a {@link java.util.SortedMap SortedMap} or
* elements in a {@link java.util.SortedSet SortedSet} since
* {@code BigDecimal}'s <i>natural ordering</i> is <i>inconsistent
* with equals</i>. See {@link Comparable}, {@link
* java.util.SortedMap} or {@link java.util.SortedSet} for more
* information.
*
* <p>All methods and constructors for this class throw
* {@code NullPointerException} when passed a {@code null} object
* reference for any input parameter.
*
* @apiNote Care should be exercised if {@code BigDecimal} objects
* are used as keys in a {@link java.util.SortedMap SortedMap} or
* elements in a {@link java.util.SortedSet SortedSet} since
* {@code BigDecimal}'s <i>natural ordering</i> is <em>inconsistent
* with equals</em>. See {@link Comparable}, {@link
* java.util.SortedMap} or {@link java.util.SortedSet} for more
* information.
*
* @see BigInteger
* @see MathContext
* @see RoundingMode
@ -377,10 +378,10 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* same sequence of characters as the {@link #BigDecimal(String)}
* constructor, while allowing a sub-array to be specified.
*
* <p>Note that if the sequence of characters is already available
* @implNote If the sequence of characters is already available
* within a character array, using this constructor is faster than
* converting the {@code char} array to string and using the
* {@code BigDecimal(String)} constructor .
* {@code BigDecimal(String)} constructor.
*
* @param in {@code char} array that is the source of characters.
* @param offset first character in the array to inspect.
@ -401,14 +402,14 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* constructor, while allowing a sub-array to be specified and
* with rounding according to the context settings.
*
* <p>Note that if the sequence of characters is already available
* @implNote If the sequence of characters is already available
* within a character array, using this constructor is faster than
* converting the {@code char} array to string and using the
* {@code BigDecimal(String)} constructor.
*
* @param in {@code char} array that is the source of characters.
* @param offset first character in the array to inspect.
* @param len number of characters to consider..
* @param len number of characters to consider.
* @param mc the context to use.
* @throws ArithmeticException if the result is inexact but the
* rounding mode is {@code UNNECESSARY}.
@ -679,10 +680,10 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* same sequence of characters as the {@link #BigDecimal(String)}
* constructor.
*
* <p>Note that if the sequence of characters is already available
* @implNote If the sequence of characters is already available
* as a character array, using this constructor is faster than
* converting the {@code char} array to string and using the
* {@code BigDecimal(String)} constructor .
* {@code BigDecimal(String)} constructor.
*
* @param in {@code char} array that is the source of characters.
* @throws NumberFormatException if {@code in} is not a valid
@ -700,10 +701,10 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* constructor and with rounding according to the context
* settings.
*
* <p>Note that if the sequence of characters is already available
* @implNote If the sequence of characters is already available
* as a character array, using this constructor is faster than
* converting the {@code char} array to string and using the
* {@code BigDecimal(String)} constructor .
* {@code BigDecimal(String)} constructor.
*
* @param in {@code char} array that is the source of characters.
* @param mc the context to use.
@ -805,7 +806,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* "-0" [0,0]
* </pre>
*
* <p>Note: For values other than {@code float} and
* @apiNote For values other than {@code float} and
* {@code double} NaN and &plusmn;Infinity, this constructor is
* compatible with the values returned by {@link Float#toString}
* and {@link Double#toString}. This is generally the preferred
@ -859,13 +860,13 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* This is because 0.1 cannot be represented exactly as a
* {@code double} (or, for that matter, as a binary fraction of
* any finite length). Thus, the value that is being passed
* <i>in</i> to the constructor is not exactly equal to 0.1,
* <em>in</em> to the constructor is not exactly equal to 0.1,
* appearances notwithstanding.
*
* <li>
* The {@code String} constructor, on the other hand, is
* perfectly predictable: writing {@code new BigDecimal("0.1")}
* creates a {@code BigDecimal} which is <i>exactly</i> equal to
* creates a {@code BigDecimal} which is <em>exactly</em> equal to
* 0.1, as one would expect. Therefore, it is generally
* recommended that the {@linkplain #BigDecimal(String)
* String constructor} be used in preference to this one.
@ -1199,10 +1200,11 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
/**
* Translates a {@code long} unscaled value and an
* {@code int} scale into a {@code BigDecimal}. This
* {@literal "static factory method"} is provided in preference to
* a ({@code long}, {@code int}) constructor because it
* allows for reuse of frequently used {@code BigDecimal} values..
* {@code int} scale into a {@code BigDecimal}.
*
* @apiNote This static factory method is provided in preference
* to a ({@code long}, {@code int}) constructor because it allows
* for reuse of frequently used {@code BigDecimal} values.
*
* @param unscaledVal unscaled value of the {@code BigDecimal}.
* @param scale scale of the {@code BigDecimal}.
@ -1222,10 +1224,11 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
/**
* Translates a {@code long} value into a {@code BigDecimal}
* with a scale of zero. This {@literal "static factory method"}
* is provided in preference to a ({@code long}) constructor
* because it allows for reuse of frequently used
* {@code BigDecimal} values.
* with a scale of zero.
*
* @apiNote This static factory method is provided in preference
* to a ({@code long}) constructor because it allows for reuse of
* frequently used {@code BigDecimal} values.
*
* @param val value of the {@code BigDecimal}.
* @return a {@code BigDecimal} whose value is {@code val}.
@ -1270,11 +1273,11 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* the {@code double}'s canonical string representation provided
* by the {@link Double#toString(double)} method.
*
* <p><b>Note:</b> This is generally the preferred way to convert
* a {@code double} (or {@code float}) into a
* {@code BigDecimal}, as the value returned is equal to that
* resulting from constructing a {@code BigDecimal} from the
* result of using {@link Double#toString(double)}.
* @apiNote This is generally the preferred way to convert a
* {@code double} (or {@code float}) into a {@code BigDecimal}, as
* the value returned is equal to that resulting from constructing
* a {@code BigDecimal} from the result of using {@link
* Double#toString(double)}.
*
* @param val {@code double} to convert to a {@code BigDecimal}.
* @return a {@code BigDecimal} whose value is equal to or approximately
@ -1896,7 +1899,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
*
* <p>The remainder is given by
* {@code this.subtract(this.divideToIntegralValue(divisor).multiply(divisor))}.
* Note that this is not the modulo operation (the result can be
* Note that this is <em>not</em> the modulo operation (the result can be
* negative).
*
* @param divisor value by which this {@code BigDecimal} is to be divided.
@ -2037,6 +2040,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* {@code (mc.getRoundingMode()==RoundingMode.UNNECESSARY}) and
* the exact result cannot fit in {@code mc.getPrecision()}
* digits.
* @see BigInteger#sqrt()
* @since 9
*/
public BigDecimal sqrt(MathContext mc) {
@ -2694,8 +2698,8 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* in this case, the specified rounding mode is applied to the
* division.
*
* <p>Note that since BigDecimal objects are immutable, calls of
* this method do <i>not</i> result in the original object being
* @apiNote Since BigDecimal objects are immutable, calls of
* this method do <em>not</em> result in the original object being
* modified, contrary to the usual convention of having methods
* named <code>set<i>X</i></code> mutate field <i>{@code X}</i>.
* Instead, {@code setScale} returns an object with the proper
@ -2727,8 +2731,8 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* in this case, the specified rounding mode is applied to the
* division.
*
* <p>Note that since BigDecimal objects are immutable, calls of
* this method do <i>not</i> result in the original object being
* @apiNote Since BigDecimal objects are immutable, calls of
* this method do <em>not</em> result in the original object being
* modified, contrary to the usual convention of having methods
* named <code>set<i>X</i></code> mutate field <i>{@code X}</i>.
* Instead, {@code setScale} returns an object with the proper
@ -2822,8 +2826,8 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* versions of {@code setScale}, but saves the caller the trouble
* of specifying a rounding mode in cases where it is irrelevant.
*
* <p>Note that since {@code BigDecimal} objects are immutable,
* calls of this method do <i>not</i> result in the original
* @apiNote Since {@code BigDecimal} objects are immutable,
* calls of this method do <em>not</em> result in the original
* object being modified, contrary to the usual convention of
* having methods named <code>set<i>X</i></code> mutate field
* <i>{@code X}</i>. Instead, {@code setScale} returns an
@ -3091,7 +3095,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
/**
* Returns the hash code for this {@code BigDecimal}. Note that
* two {@code BigDecimal} objects that are numerically equal but
* differ in scale (like 2.0 and 2.00) will generally <i>not</i>
* differ in scale (like 2.0 and 2.00) will generally <em>not</em>
* have the same hash code.
*
* @return hash code for this {@code BigDecimal}.
@ -3342,7 +3346,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* Converts this {@code BigDecimal} to a {@code BigInteger}.
* This conversion is analogous to the
* <i>narrowing primitive conversion</i> from {@code double} to
* {@code long} as defined in section 5.1.3 of
* {@code long} as defined in
* <cite>The Java&trade; Language Specification</cite>:
* any fractional part of this
* {@code BigDecimal} will be discarded. Note that this
@ -3354,6 +3358,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* {@link #toBigIntegerExact()} method.
*
* @return this {@code BigDecimal} converted to a {@code BigInteger}.
* @jls 5.1.3 Narrowing Primitive Conversion
*/
public BigInteger toBigInteger() {
// force to an integer, quietly
@ -3379,7 +3384,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* Converts this {@code BigDecimal} to a {@code long}.
* This conversion is analogous to the
* <i>narrowing primitive conversion</i> from {@code double} to
* {@code short} as defined in section 5.1.3 of
* {@code short} as defined in
* <cite>The Java&trade; Language Specification</cite>:
* any fractional part of this
* {@code BigDecimal} will be discarded, and if the resulting
@ -3390,6 +3395,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* as return a result with the opposite sign.
*
* @return this {@code BigDecimal} converted to a {@code long}.
* @jls 5.1.3 Narrowing Primitive Conversion
*/
@Override
public long longValue(){
@ -3448,7 +3454,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* Converts this {@code BigDecimal} to an {@code int}.
* This conversion is analogous to the
* <i>narrowing primitive conversion</i> from {@code double} to
* {@code short} as defined in section 5.1.3 of
* {@code short} as defined in
* <cite>The Java&trade; Language Specification</cite>:
* any fractional part of this
* {@code BigDecimal} will be discarded, and if the resulting
@ -3459,6 +3465,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* value as well as return a result with the opposite sign.
*
* @return this {@code BigDecimal} converted to an {@code int}.
* @jls 5.1.3 Narrowing Primitive Conversion
*/
@Override
public int intValue() {
@ -3531,7 +3538,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* Converts this {@code BigDecimal} to a {@code float}.
* This conversion is similar to the
* <i>narrowing primitive conversion</i> from {@code double} to
* {@code float} as defined in section 5.1.3 of
* {@code float} as defined in
* <cite>The Java&trade; Language Specification</cite>:
* if this {@code BigDecimal} has too great a
* magnitude to represent as a {@code float}, it will be
@ -3542,6 +3549,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* value.
*
* @return this {@code BigDecimal} converted to a {@code float}.
* @jls 5.1.3 Narrowing Primitive Conversion
*/
@Override
public float floatValue(){
@ -3575,7 +3583,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* Converts this {@code BigDecimal} to a {@code double}.
* This conversion is similar to the
* <i>narrowing primitive conversion</i> from {@code double} to
* {@code float} as defined in section 5.1.3 of
* {@code float} as defined in
* <cite>The Java&trade; Language Specification</cite>:
* if this {@code BigDecimal} has too great a
* magnitude represent as a {@code double}, it will be
@ -3586,6 +3594,7 @@ public class BigDecimal extends Number implements Comparable<BigDecimal> {
* value.
*
* @return this {@code BigDecimal} converted to a {@code double}.
* @jls 5.1.3 Narrowing Primitive Conversion
*/
@Override
public double doubleValue(){

29
jdk/src/java.base/share/classes/java/math/BigInteger.java
View File

@ -116,6 +116,7 @@ import jdk.internal.HotSpotIntrinsicCandidate;
* +2<sup>{@code Integer.MAX_VALUE}</sup> (exclusive).
*
* @see BigDecimal
* @jls 4.2.2 Integer Operations
* @author Josh Bloch
* @author Michael McCloskey
* @author Alan Eliasen
@ -126,7 +127,7 @@ import jdk.internal.HotSpotIntrinsicCandidate;
public class BigInteger extends Number implements Comparable<BigInteger> {
/**
* The signum of this BigInteger: -1 for negative, 0 for zero, or
* 1 for positive. Note that the BigInteger zero <i>must</i> have
* 1 for positive. Note that the BigInteger zero <em>must</em> have
* a signum of 0. This is necessary to ensures that there is exactly one
* representation for each BigInteger value.
*/
@ -710,7 +711,7 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
* Constructs a randomly generated positive BigInteger that is probably
* prime, with the specified bitLength.
*
* <p>It is recommended that the {@link #probablePrime probablePrime}
* @apiNote It is recommended that the {@link #probablePrime probablePrime}
* method be used in preference to this constructor unless there
* is a compelling need to specify a certainty.
*
@ -1157,9 +1158,11 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
/**
* Returns a BigInteger whose value is equal to that of the
* specified {@code long}. This "static factory method" is
* provided in preference to a ({@code long}) constructor
* because it allows for reuse of frequently used BigIntegers.
* specified {@code long}.
*
* @apiNote This static factory method is provided in preference
* to a ({@code long}) constructor because it allows for reuse of
* frequently used BigIntegers.
*
* @param val value of the BigInteger to return.
* @return a BigInteger with the specified value.
@ -3551,13 +3554,13 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
/**
* Returns the number of bits in the minimal two's-complement
* representation of this BigInteger, <i>excluding</i> a sign bit.
* representation of this BigInteger, <em>excluding</em> a sign bit.
* For positive BigIntegers, this is equivalent to the number of bits in
* the ordinary binary representation. (Computes
* {@code (ceil(log2(this < 0 ? -this : this+1)))}.)
*
* @return number of bits in the minimal two's-complement
* representation of this BigInteger, <i>excluding</i> a sign bit.
* representation of this BigInteger, <em>excluding</em> a sign bit.
*/
public int bitLength() {
int n = bitLengthPlusOne - 1;
@ -4034,7 +4037,7 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
* Converts this BigInteger to an {@code int}. This
* conversion is analogous to a
* <i>narrowing primitive conversion</i> from {@code long} to
* {@code int} as defined in section 5.1.3 of
* {@code int} as defined in
* <cite>The Java&trade; Language Specification</cite>:
* if this BigInteger is too big to fit in an
* {@code int}, only the low-order 32 bits are returned.
@ -4044,6 +4047,7 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
*
* @return this BigInteger converted to an {@code int}.
* @see #intValueExact()
* @jls 5.1.3 Narrowing Primitive Conversion
*/
public int intValue() {
int result = 0;
@ -4055,7 +4059,7 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
* Converts this BigInteger to a {@code long}. This
* conversion is analogous to a
* <i>narrowing primitive conversion</i> from {@code long} to
* {@code int} as defined in section 5.1.3 of
* {@code int} as defined in
* <cite>The Java&trade; Language Specification</cite>:
* if this BigInteger is too big to fit in a
* {@code long}, only the low-order 64 bits are returned.
@ -4065,6 +4069,7 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
*
* @return this BigInteger converted to a {@code long}.
* @see #longValueExact()
* @jls 5.1.3 Narrowing Primitive Conversion
*/
public long longValue() {
long result = 0;
@ -4078,7 +4083,7 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
* Converts this BigInteger to a {@code float}. This
* conversion is similar to the
* <i>narrowing primitive conversion</i> from {@code double} to
* {@code float} as defined in section 5.1.3 of
* {@code float} as defined in
* <cite>The Java&trade; Language Specification</cite>:
* if this BigInteger has too great a magnitude
* to represent as a {@code float}, it will be converted to
@ -4088,6 +4093,7 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
* information about the precision of the BigInteger value.
*
* @return this BigInteger converted to a {@code float}.
* @jls 5.1.3 Narrowing Primitive Conversion
*/
public float floatValue() {
if (signum == 0) {
@ -4162,7 +4168,7 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
* Converts this BigInteger to a {@code double}. This
* conversion is similar to the
* <i>narrowing primitive conversion</i> from {@code double} to
* {@code float} as defined in section 5.1.3 of
* {@code float} as defined in
* <cite>The Java&trade; Language Specification</cite>:
* if this BigInteger has too great a magnitude
* to represent as a {@code double}, it will be converted to
@ -4172,6 +4178,7 @@ public class BigInteger extends Number implements Comparable<BigInteger> {
* information about the precision of the BigInteger value.
*
* @return this BigInteger converted to a {@code double}.
* @jls 5.1.3 Narrowing Primitive Conversion
*/
public double doubleValue() {
if (signum == 0) {