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763725b1
编写于
6月 23, 2011
作者:
L
lana
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差异文件
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上级
b71112a9
fc6b874b
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隐藏空白更改
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并排
Showing
9 changed file
with
182 addition
and
103 deletion
+182
-103
src/share/classes/java/lang/Byte.java
src/share/classes/java/lang/Byte.java
+16
-11
src/share/classes/java/lang/Double.java
src/share/classes/java/lang/Double.java
+17
-13
src/share/classes/java/lang/Float.java
src/share/classes/java/lang/Float.java
+17
-12
src/share/classes/java/lang/Integer.java
src/share/classes/java/lang/Integer.java
+16
-11
src/share/classes/java/lang/Long.java
src/share/classes/java/lang/Long.java
+16
-11
src/share/classes/java/lang/Number.java
src/share/classes/java/lang/Number.java
+46
-34
src/share/classes/java/lang/Short.java
src/share/classes/java/lang/Short.java
+16
-11
src/share/classes/java/util/concurrent/atomic/AtomicInteger.java
...re/classes/java/util/concurrent/atomic/AtomicInteger.java
+19
-0
src/share/classes/java/util/concurrent/atomic/AtomicLong.java
...share/classes/java/util/concurrent/atomic/AtomicLong.java
+19
-0
未找到文件。
src/share/classes/java/lang/Byte.java
浏览文件 @
763725b1
/*
* Copyright (c) 1996, 20
09
, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1996, 20
11
, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
...
...
@@ -324,40 +324,45 @@ public final class Byte extends Number implements Comparable<Byte> {
}
/**
* Returns the value of this {@code Byte} as a
* {@code short}.
* Returns the value of this {@code Byte} as a {@code short} after
* a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
short
shortValue
()
{
return
(
short
)
value
;
}
/**
* Returns the value of this {@code Byte} as an
* {@code int}.
* Returns the value of this {@code Byte} as an {@code int} after
* a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
int
intValue
()
{
return
(
int
)
value
;
}
/**
* Returns the value of this {@code Byte} as a
* {@code long}.
* Returns the value of this {@code Byte} as a {@code long} after
* a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
long
longValue
()
{
return
(
long
)
value
;
}
/**
* Returns the value of this {@code Byte} as a
* {@code float}.
* Returns the value of this {@code Byte} as a {@code float} after
* a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
float
floatValue
()
{
return
(
float
)
value
;
}
/**
* Returns the value of this {@code Byte} as a
* {@code double}.
* Returns the value of this {@code Byte} as a {@code double}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
double
doubleValue
()
{
return
(
double
)
value
;
...
...
src/share/classes/java/lang/Double.java
浏览文件 @
763725b1
/*
* Copyright (c) 1994, 201
0
, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1994, 201
1
, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
...
...
@@ -634,11 +634,12 @@ public final class Double extends Number implements Comparable<Double> {
}
/**
* Returns the value of this {@code Double} as a {@code byte}
(by
*
casting to a {@code byte})
.
* Returns the value of this {@code Double} as a {@code byte}
*
after a narrowing primitive conversion
.
*
* @return the {@code double} value represented by this object
* converted to type {@code byte}
* @jls 5.1.3 Narrowing Primitive Conversions
* @since JDK1.1
*/
public
byte
byteValue
()
{
...
...
@@ -646,11 +647,12 @@ public final class Double extends Number implements Comparable<Double> {
}
/**
* Returns the value of this {@code Double} as a
*
{@code short} (by casting to a {@code short})
.
* Returns the value of this {@code Double} as a
{@code short}
*
after a narrowing primitive conversion
.
*
* @return the {@code double} value represented by this object
* converted to type {@code short}
* @jls 5.1.3 Narrowing Primitive Conversions
* @since JDK1.1
*/
public
short
shortValue
()
{
...
...
@@ -658,8 +660,9 @@ public final class Double extends Number implements Comparable<Double> {
}
/**
* Returns the value of this {@code Double} as an
* {@code int} (by casting to type {@code int}).
* Returns the value of this {@code Double} as an {@code int}
* after a narrowing primitive conversion.
* @jls 5.1.3 Narrowing Primitive Conversions
*
* @return the {@code double} value represented by this object
* converted to type {@code int}
...
...
@@ -669,22 +672,24 @@ public final class Double extends Number implements Comparable<Double> {
}
/**
* Returns the value of this {@code Double} as a
*
{@code long} (by casting to type {@code long})
.
* Returns the value of this {@code Double} as a
{@code long}
*
after a narrowing primitive conversion
.
*
* @return the {@code double} value represented by this object
* converted to type {@code long}
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
long
longValue
()
{
return
(
long
)
value
;
}
/**
* Returns the
{@code float} value of this
*
{@code Double} object
.
* Returns the
value of this {@code Double} as a {@code float}
*
after a narrowing primitive conversion
.
*
* @return the {@code double} value represented by this object
* converted to type {@code float}
* @jls 5.1.3 Narrowing Primitive Conversions
* @since JDK1.0
*/
public
float
floatValue
()
{
...
...
@@ -692,8 +697,7 @@ public final class Double extends Number implements Comparable<Double> {
}
/**
* Returns the {@code double} value of this
* {@code Double} object.
* Returns the {@code double} value of this {@code Double} object.
*
* @return the {@code double} value represented by this object
*/
...
...
src/share/classes/java/lang/Float.java
浏览文件 @
763725b1
/*
* Copyright (c) 1994, 201
0
, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1994, 201
1
, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
...
...
@@ -556,22 +556,24 @@ public final class Float extends Number implements Comparable<Float> {
}
/**
* Returns the value of this {@code Float} as a {@code byte}
(by
*
casting to a {@code byte})
.
* Returns the value of this {@code Float} as a {@code byte}
after
*
a narrowing primitive conversion
.
*
* @return the {@code float} value represented by this object
* converted to type {@code byte}
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
byte
byteValue
()
{
return
(
byte
)
value
;
}
/**
* Returns the value of this {@code Float} as a {@code short}
(by
*
casting to a {@code short})
.
* Returns the value of this {@code Float} as a {@code short}
*
after a narrowing primitive conversion
.
*
* @return the {@code float} value represented by this object
* converted to type {@code short}
* @jls 5.1.3 Narrowing Primitive Conversions
* @since JDK1.1
*/
public
short
shortValue
()
{
...
...
@@ -579,22 +581,24 @@ public final class Float extends Number implements Comparable<Float> {
}
/**
* Returns the value of this {@code Float} as an {@code int}
(by
*
casting to type {@code int})
.
* Returns the value of this {@code Float} as an {@code int}
after
*
a narrowing primitive conversion
.
*
* @return the {@code float} value represented by this object
* converted to type {@code int}
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
int
intValue
()
{
return
(
int
)
value
;
}
/**
* Returns value of this {@code Float} as a {@code long}
(by
*
casting to type {@code long})
.
* Returns value of this {@code Float} as a {@code long}
after a
*
narrowing primitive conversion
.
*
* @return the {@code float} value represented by this object
* converted to type {@code long}
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
long
longValue
()
{
return
(
long
)
value
;
...
...
@@ -610,11 +614,12 @@ public final class Float extends Number implements Comparable<Float> {
}
/**
* Returns the {@code double} value of this {@code Float} object.
* Returns the value of this {@code Float} as a {@code double}
* after a widening primitive conversion.
*
* @return the {@code float} value represented by this
* object
is converted to type {@code double} and the
*
result of the conversion is returned.
* object
converted to type {@code double}
*
@jls 5.1.2 Widening Primitive Conversions
*/
public
double
doubleValue
()
{
return
(
double
)
value
;
...
...
src/share/classes/java/lang/Integer.java
浏览文件 @
763725b1
/*
* Copyright (c) 1994, 201
0
, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1994, 201
1
, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
...
...
@@ -678,16 +678,18 @@ public final class Integer extends Number implements Comparable<Integer> {
}
/**
* Returns the value of this {@code Integer} as a
* {@code byte}.
* Returns the value of this {@code Integer} as a {@code byte}
* after a narrowing primitive conversion.
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
byte
byteValue
()
{
return
(
byte
)
value
;
}
/**
* Returns the value of this {@code Integer} as a
* {@code short}.
* Returns the value of this {@code Integer} as a {@code short}
* after a narrowing primitive conversion.
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
short
shortValue
()
{
return
(
short
)
value
;
...
...
@@ -702,24 +704,27 @@ public final class Integer extends Number implements Comparable<Integer> {
}
/**
* Returns the value of this {@code Integer} as a
* {@code long}.
* Returns the value of this {@code Integer} as a {@code long}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
long
longValue
()
{
return
(
long
)
value
;
}
/**
* Returns the value of this {@code Integer} as a
* {@code float}.
* Returns the value of this {@code Integer} as a {@code float}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
float
floatValue
()
{
return
(
float
)
value
;
}
/**
* Returns the value of this {@code Integer} as a
* {@code double}.
* Returns the value of this {@code Integer} as a {@code double}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
double
doubleValue
()
{
return
(
double
)
value
;
...
...
src/share/classes/java/lang/Long.java
浏览文件 @
763725b1
/*
* Copyright (c) 1994, 20
09
, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1994, 20
11
, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
...
...
@@ -703,24 +703,27 @@ public final class Long extends Number implements Comparable<Long> {
}
/**
* Returns the value of this {@code Long} as a
* {@code byte}.
* Returns the value of this {@code Long} as a {@code byte} after
* a narrowing primitive conversion.
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
byte
byteValue
()
{
return
(
byte
)
value
;
}
/**
* Returns the value of this {@code Long} as a
* {@code short}.
* Returns the value of this {@code Long} as a {@code short} after
* a narrowing primitive conversion.
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
short
shortValue
()
{
return
(
short
)
value
;
}
/**
* Returns the value of this {@code Long} as an
* {@code int}.
* Returns the value of this {@code Long} as an {@code int} after
* a narrowing primitive conversion.
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
int
intValue
()
{
return
(
int
)
value
;
...
...
@@ -735,16 +738,18 @@ public final class Long extends Number implements Comparable<Long> {
}
/**
* Returns the value of this {@code Long} as a
* {@code float}.
* Returns the value of this {@code Long} as a {@code float} after
* a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
float
floatValue
()
{
return
(
float
)
value
;
}
/**
* Returns the value of this {@code Long} as a
* {@code double}.
* Returns the value of this {@code Long} as a {@code double}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
double
doubleValue
()
{
return
(
double
)
value
;
...
...
src/share/classes/java/lang/Number.java
浏览文件 @
763725b1
/*
* Copyright (c) 1994, 20
0
1, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1994, 20
1
1, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
...
...
@@ -26,69 +26,78 @@
package
java.lang
;
/**
* The abstract class <code>Number</code> is the superclass of classes
* <code>BigDecimal</code>, <code>BigInteger</code>,
* <code>Byte</code>, <code>Double</code>, <code>Float</code>,
* <code>Integer</code>, <code>Long</code>, and <code>Short</code>.
* <p>
* Subclasses of <code>Number</code> must provide methods to convert
* the represented numeric value to <code>byte</code>, <code>double</code>,
* <code>float</code>, <code>int</code>, <code>long</code>, and
* <code>short</code>.
* The abstract class {@code Number} is the superclass of platform
* classes representing numeric values that are convertible to the
* primitive types {@code byte}, {@code double}, {@code float}, {@code
* int}, {@code long}, and {@code short}.
*
* The specific semantics of the conversion from the numeric value of
* a particular {@code Number} implementation to a given primitive
* type is defined by the {@code Number} implementation in question.
*
* For platform classes, the conversion is often analogous to a
* narrowing primitive conversion or a widening primitive conversion
* as defining in <cite>The Java™ Language Specification</cite>
* for converting between primitive types. Therefore, conversions may
* lose information about the overall magnitude of a numeric value, may
* lose precision, and may even return a result of a different sign
* than the input.
*
* See the documentation of a given {@code Number} implementation for
* conversion details.
*
* @author Lee Boynton
* @author Arthur van Hoff
* @see java.lang.Byte
* @see java.lang.Double
* @see java.lang.Float
* @see java.lang.Integer
* @see java.lang.Long
* @see java.lang.Short
* @jls 5.1.2 Widening Primitive Conversions
* @jls 5.1.3 Narrowing Primitive Conversions
* @since JDK1.0
*/
public
abstract
class
Number
implements
java
.
io
.
Serializable
{
/**
* Returns the value of the specified number as an
<code>int</code>.
*
This
may involve rounding or truncation.
* Returns the value of the specified number as an
{@code int},
*
which
may involve rounding or truncation.
*
* @return the numeric value represented by this object after conversion
* to type
<code>int</code>
.
* to type
{@code int}
.
*/
public
abstract
int
intValue
();
/**
* Returns the value of the specified number as a
<code>long</code>.
*
This
may involve rounding or truncation.
* Returns the value of the specified number as a
{@code long},
*
which
may involve rounding or truncation.
*
* @return the numeric value represented by this object after conversion
* to type
<code>long</code>
.
* to type
{@code long}
.
*/
public
abstract
long
longValue
();
/**
* Returns the value of the specified number as a
<code>float</code>.
*
This
may involve rounding.
* Returns the value of the specified number as a
{@code float},
*
which
may involve rounding.
*
* @return the numeric value represented by this object after conversion
* to type
<code>float</code>
.
* to type
{@code float}
.
*/
public
abstract
float
floatValue
();
/**
* Returns the value of the specified number as a
<code>double</code>.
*
This
may involve rounding.
* Returns the value of the specified number as a
{@code double},
*
which
may involve rounding.
*
* @return the numeric value represented by this object after conversion
* to type
<code>double</code>
.
* to type
{@code double}
.
*/
public
abstract
double
doubleValue
();
/**
* Returns the value of the specified number as a <code>byte</code>.
* This may involve rounding or truncation.
* Returns the value of the specified number as a {@code byte},
* which may involve rounding or truncation.
*
* <p>This implementation returns the result of {@link #intValue} cast
* to a {@code byte}.
*
* @return the numeric value represented by this object after conversion
* to type
<code>byte</code>
.
* to type
{@code byte}
.
* @since JDK1.1
*/
public
byte
byteValue
()
{
...
...
@@ -96,11 +105,14 @@ public abstract class Number implements java.io.Serializable {
}
/**
* Returns the value of the specified number as a <code>short</code>.
* This may involve rounding or truncation.
* Returns the value of the specified number as a {@code short},
* which may involve rounding or truncation.
*
* <p>This implementation returns the result of {@link #intValue} cast
* to a {@code short}.
*
* @return the numeric value represented by this object after conversion
* to type
<code>short</code>
.
* to type
{@code short}
.
* @since JDK1.1
*/
public
short
shortValue
()
{
...
...
src/share/classes/java/lang/Short.java
浏览文件 @
763725b1
/*
* Copyright (c) 1996, 20
09
, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1996, 20
11
, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
...
...
@@ -321,8 +321,9 @@ public final class Short extends Number implements Comparable<Short> {
}
/**
* Returns the value of this {@code Short} as a
* {@code byte}.
* Returns the value of this {@code Short} as a {@code byte} after
* a narrowing primitive conversion.
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
byte
byteValue
()
{
return
(
byte
)
value
;
...
...
@@ -337,32 +338,36 @@ public final class Short extends Number implements Comparable<Short> {
}
/**
* Returns the value of this {@code Short} as an
* {@code int}.
* Returns the value of this {@code Short} as an {@code int} after
* a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
int
intValue
()
{
return
(
int
)
value
;
}
/**
* Returns the value of this {@code Short} as a
* {@code long}.
* Returns the value of this {@code Short} as a {@code long} after
* a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
long
longValue
()
{
return
(
long
)
value
;
}
/**
* Returns the value of this {@code Short} as a
* {@code float}.
* Returns the value of this {@code Short} as a {@code float}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
float
floatValue
()
{
return
(
float
)
value
;
}
/**
* Returns the value of this {@code Short} as a
* {@code double}.
* Returns the value of this {@code Short} as a {@code double}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
double
doubleValue
()
{
return
(
double
)
value
;
...
...
src/share/classes/java/util/concurrent/atomic/AtomicInteger.java
浏览文件 @
763725b1
...
...
@@ -246,18 +246,37 @@ public class AtomicInteger extends Number implements java.io.Serializable {
}
/**
* Returns the value of this {@code AtomicInteger} as an
* {@code int}.
*/
public
int
intValue
()
{
return
get
();
}
/**
* Returns the value of this {@code AtomicInteger} as a {@code long}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
long
longValue
()
{
return
(
long
)
get
();
}
/**
* Returns the value of this {@code AtomicInteger} as a {@code float}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
float
floatValue
()
{
return
(
float
)
get
();
}
/**
* Returns the value of this {@code AtomicInteger} as a {@code double}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
double
doubleValue
()
{
return
(
double
)
get
();
}
...
...
src/share/classes/java/util/concurrent/atomic/AtomicLong.java
浏览文件 @
763725b1
...
...
@@ -260,18 +260,37 @@ public class AtomicLong extends Number implements java.io.Serializable {
}
/**
* Returns the value of this {@code AtomicLong} as an {@code int}
* after a narrowing primitive conversion.
* @jls 5.1.3 Narrowing Primitive Conversions
*/
public
int
intValue
()
{
return
(
int
)
get
();
}
/**
* Returns the value of this {@code AtomicLong} as a {@code long}
* value.
*/
public
long
longValue
()
{
return
get
();
}
/**
* Returns the value of this {@code AtomicLong} as a {@code float}
* after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
float
floatValue
()
{
return
(
float
)
get
();
}
/**
* Returns the value of this {@code AtomicLong} as a {@code
* double} after a widening primitive conversion.
* @jls 5.1.2 Widening Primitive Conversions
*/
public
double
doubleValue
()
{
return
(
double
)
get
();
}
...
...
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