cn.hutool.core.lang.mutable

Class MutableInt

java.lang.Object

java.lang.Number

cn.hutool.core.lang.mutable.MutableInt

All Implemented Interfaces:

Mutable<Number>, Serializable, Comparable<MutableInt>

public class MutableInt
extends Number
implements Comparable<MutableInt>, Mutable<Number>

可变 int 类型

Since:

3.0.1

See Also:

Integer, Serialized Form

Constructor Summary

Constructors

Constructor and Description
MutableInt() 构造，默认值0
MutableInt(int value) 构造
MutableInt(Number value) 构造
MutableInt(String value) 构造

Method Summary

Modifier and Type	Method and Description
MutableInt	add(int operand) 增加值
MutableInt	add(Number operand) 增加值
int	compareTo(MutableInt other) 比较
MutableInt	decrement() 值减一
double	doubleValue()
boolean	equals(Object obj) 相等需同时满足如下条件： 非空 类型为 MutableInt 值相等
float	floatValue()
Integer	get() 获得原始值
int	hashCode()
MutableInt	increment() 值+1
int	intValue()
long	longValue()
void	set(int value) 设置值
void	set(Number value) 设置值
MutableInt	subtract(int operand) 减去值
MutableInt	subtract(Number operand) 减去值
String	toString()

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

MutableInt

public MutableInt()

构造，默认值0

MutableInt

public MutableInt(int value)

构造

Parameters:

value - 值

MutableInt

public MutableInt(Number value)

构造

Parameters:

value - 值

MutableInt

public MutableInt(String value)
           throws NumberFormatException

构造

Parameters:

value - String值

Throws:

NumberFormatException - 数字转换错误

Method Detail

get

public Integer get()

Description copied from interface: Mutable

获得原始值

Specified by:

get in interface Mutable<Number>

Returns:

原始值

set

public void set(int value)

设置值

Parameters:

value - 值

set

public void set(Number value)

Description copied from interface: Mutable

设置值

Specified by:

set in interface Mutable<Number>

Parameters:

value - 值

increment

public MutableInt increment()

值+1

Returns:

this

decrement

public MutableInt decrement()

值减一

Returns:

this

add

public MutableInt add(int operand)

增加值

Parameters:

operand - 被增加的值

Returns:

this

add

public MutableInt add(Number operand)

增加值

Parameters:

operand - 被增加的值，非空

Returns:

this

Throws:

NullPointerException - if the object is null

subtract

public MutableInt subtract(int operand)

减去值

Parameters:

operand - 被减的值

Returns:

this

subtract

public MutableInt subtract(Number operand)

减去值

Parameters:

operand - 被减的值，非空

Returns:

this

Throws:

NullPointerException - if the object is null

intValue

public int intValue()

Specified by:

intValue in class Number

longValue

public long longValue()

Specified by:

longValue in class Number

floatValue

public float floatValue()

Specified by:

floatValue in class Number

doubleValue

public double doubleValue()

Specified by:

doubleValue in class Number

equals

public boolean equals(Object obj)

相等需同时满足如下条件：

1. 非空
2. 类型为 MutableInt
3. 值相等

Overrides:

equals in class Object

Parameters:

obj - 比对的对象

Returns:

相同返回true，否则 false

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(MutableInt other)

比较

Specified by:

compareTo in interface Comparable<MutableInt>

Parameters:

other - 其它 MutableInt 对象

Returns:

x==y返回0，x<y返回-1，x>y返回1

toString

public String toString()

Overrides:

toString in class Object