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Groovy JDK

java.lang
Class Number

Method Summary
int abs()
Get the absolute value
Number and(Number right)
Bitwise AND together two Numbers.
boolean asBoolean()
Coerce a number to a boolean value.
Object asType(Class c)
Transform this number to a the given type, using the 'as' operator.
int compareTo(Character right)
Compare a Number and a Character.
int compareTo(Number right)
Compare two Numbers.
Number div(Character right)
Divide a Number by a Character.
Number div(Number right)
Divide two Numbers.
void downto(Number to, Closure closure)
Iterates from this number down to the given number, inclusive, decrementing by one each time.
Number intdiv(Character right)
Integer Divide a Number by a Character.
Number intdiv(Number right)
Integer Divide two Numbers.
boolean isCase(Number switchValue)
Special 'case' implementation for all numbers, which delegates to the compareTo() method for comparing numbers of different types.
Number leftShift(Number operand)
Implementation of the left shift operator for integral types.
Number minus(Character right)
Subtract a Character from a Number.
Number minus(Number right)
Subtraction of two Numbers.
Number mod(Number right)
Performs a division modulus operation.
Number multiply(Character right)
Multiply a Number by a Character.
Number multiply(Number right)
Multiply two Numbers.
Number next()
Increment a Number by one.
Number or(Number right)
Bitwise OR together two numbers.
String plus(String right)
Appends a String to the string representation of this number.
Number plus(Character right)
Add a Number and a Character.
Number plus(Number right)
Add two numbers and return the result.
Number power(Number exponent)
Power of a Number to a certain exponent.
Number previous()
Decrement a Number by one.
Number rightShift(Number operand)
Implementation of the right shift operator for integral types.
Number rightShiftUnsigned(Number operand)
Implementation of the right shift (unsigned) operator for integral types.
void step(Number to, Number stepNumber, Closure closure)
Iterates from this number up to the given number using a step increment.
void times(Closure closure)
Executes the closure this many times, starting from zero.
BigDecimal toBigDecimal()
Transform a Number into a BigDecimal
BigInteger toBigInteger()
Transform this Number into a BigInteger.
Double toDouble()
Transform a Number into a Double
Float toFloat()
Transform a Number into a Float
Integer toInteger()
Transform a Number into an Integer
Long toLong()
Transform a Number into a Long
Number unaryMinus()
Negates the number.
void upto(Number to, Closure closure)
Iterates from this number up to the given number, inclusive, incrementing by one each time.
Number xor(Number right)
Bitwise XOR together two Numbers.
 
Method Detail

abs

public int abs()
 
Get the absolute value
Returns:
the absolute value of that Number
Since:
1.0

and

public Number and(Number right)
 
Bitwise AND together two Numbers.
Parameters:
right - another Number to bitwise AND.
Returns:
the bitwise AND of both Numbers
Since:
1.0

asBoolean

public boolean asBoolean()
 
Coerce a number to a boolean value. A number is coerced to false if its double value is equal to 0, and to true otherwise, and to true otherwise.
Returns:
the boolean value
Since:
1.7.0

asType

public Object asType(Class c)
 
Transform this number to a the given type, using the 'as' operator. The following types are supported in addition to the default Object#asType:
Parameters:
c - the desired type of the transformed result.
Returns:
an instance of the given type
Since:
1.0

compareTo

public int compareTo(Character right)
 
Compare a Number and a Character. The ordinal value of the Character is used in the comparison (the ordinal value is the unicode value which for simple character sets is the ASCII value).
Parameters:
right - a Character.
Returns:
the result of the comparison
Since:
1.0

compareTo

public int compareTo(Number right)
 
Compare two Numbers. Equality (==) for numbers dispatches to this.
Parameters:
right - another Number to compare to.
Returns:
the comparison of both numbers
Since:
1.0

div

public Number div(Character right)
 
Divide a Number by a Character. The ordinal value of the Character is used in the division (the ordinal value is the unicode value which for simple character sets is the ASCII value).
Parameters:
right - a Character.
Returns:
the Number corresponding to the division of left by right
Since:
1.0

div

public Number div(Number right)
 
Divide two Numbers. Note: Method name different from 'divide' to avoid collision with BigInteger method that has different semantics. We want a BigDecimal result rather than a BigInteger.
Parameters:
right - another Number.
Returns:
a Number resulting of the divide operation

downto

public void downto(Number to, Closure closure)
 
Iterates from this number down to the given number, inclusive, decrementing by one each time.
Parameters:
to - another Number to go down to.
closure - the closure to call.
Since:
1.0

intdiv

public Number intdiv(Character right)
 
Integer Divide a Number by a Character. The ordinal value of the Character is used in the division (the ordinal value is the unicode value which for simple character sets is the ASCII value).
Parameters:
right - a Character.
Returns:
a Number (an Integer) resulting from the integer division operation
Since:
1.0

intdiv

public Number intdiv(Number right)
 
Integer Divide two Numbers.
Parameters:
right - another Number.
Returns:
a Number (an Integer) resulting from the integer division operation
Since:
1.0

isCase

public boolean isCase(Number switchValue)
 
Special 'case' implementation for all numbers, which delegates to the compareTo() method for comparing numbers of different types.
Parameters:
switchValue - the switch value.
Returns:
true if the numbers are deemed equal
Since:
1.5.0

leftShift

public Number leftShift(Number operand)
 
Implementation of the left shift operator for integral types. Non integral Number types throw UnsupportedOperationException.
Parameters:
operand - the shift distance by which to left shift the number.
Returns:
the resulting number
Since:
1.5.0

minus

public Number minus(Character right)
 
Subtract a Character from a Number. The ordinal value of the Character is used in the subtraction (the ordinal value is the unicode value which for simple character sets is the ASCII value).
Parameters:
right - a Character.
Returns:
the Number corresponding to the subtraction of right from left
Since:
1.0

minus

public Number minus(Number right)
 
Subtraction of two Numbers.
Parameters:
right - another Number to subtract to the first one.
Returns:
the subtraction

mod

public Number mod(Number right)
 
Performs a division modulus operation. Called by the '%' operator.
Parameters:
right - another Number to mod.
Returns:
the modulus result
Since:
1.0

multiply

public Number multiply(Character right)
 
Multiply a Number by a Character. The ordinal value of the Character is used in the multiplication (the ordinal value is the unicode value which for simple character sets is the ASCII value).
Parameters:
right - a Character.
Returns:
the multiplication of left by right
Since:
1.0

multiply

public Number multiply(Number right)
 
Multiply two Numbers.
Parameters:
right - another Number.
Returns:
the multiplication of both

next

public Number next()
 
Increment a Number by one.
Returns:
an incremented Number
Since:
1.0

or

public Number or(Number right)
 
Bitwise OR together two numbers.
Parameters:
right - another Number to bitwise OR.
Returns:
the bitwise OR of both Numbers
Since:
1.0

plus

public String plus(String right)
 
Appends a String to the string representation of this number.
Parameters:
right - a String.
Returns:
a String
Since:
1.0

plus

public Number plus(Character right)
 
Add a Number and a Character. The ordinal value of the Character is used in the addition (the ordinal value is the unicode value which for simple character sets is the ASCII value).
Parameters:
right - a Character.
Returns:
The Number corresponding to the addition of left and right
Since:
1.0
See:
Integer#valueOf.

plus

public Number plus(Number right)
 
Add two numbers and return the result.
Parameters:
right - another Number to add.
Returns:
the addition of both Numbers

power

public Number power(Number exponent)
 
Power of a Number to a certain exponent. Called by the '**' operator.
Parameters:
exponent - a Number exponent.
Returns:
a Number to the power of a certain exponent
Since:
1.0

previous

public Number previous()
 
Decrement a Number by one.
Returns:
a decremented Number
Since:
1.0

rightShift

public Number rightShift(Number operand)
 
Implementation of the right shift operator for integral types. Non integral Number types throw UnsupportedOperationException.
Parameters:
operand - the shift distance by which to right shift the number.
Returns:
the resulting number
Since:
1.5.0

rightShiftUnsigned

public Number rightShiftUnsigned(Number operand)
 
Implementation of the right shift (unsigned) operator for integral types. Non integral Number types throw UnsupportedOperationException.
Parameters:
operand - the shift distance by which to right shift (unsigned) the number.
Returns:
the resulting number
Since:
1.5.0

step

public void step(Number to, Number stepNumber, Closure closure)
 
Iterates from this number up to the given number using a step increment. Each intermediate number is passed to the given closure. Example: 
0.step( 10, 2 ) {
  println it
}
Prints even numbers 0 through 8.
Parameters:
to - a Number to go up to, exclusive.
stepNumber - a Number representing the step increment.
closure - the closure to call.
Since:
1.0

times

public void times(Closure closure)
 
Executes the closure this many times, starting from zero. The current index is passed to the closure each time. Example: 
10.times {
  println it
}
Prints the numbers 0 through 9.
Parameters:
closure - the closure to call a number of times.
Since:
1.0

toBigDecimal

public BigDecimal toBigDecimal()
 
Transform a Number into a BigDecimal
Returns:
an BigDecimal
Since:
1.0

toBigInteger

public BigInteger toBigInteger()
 
Transform this Number into a BigInteger.
Returns:
an BigInteger
Since:
1.0

toDouble

public Double toDouble()
 
Transform a Number into a Double
Returns:
an Double
Since:
1.0

toFloat

public Float toFloat()
 
Transform a Number into a Float
Returns:
an Float
Since:
1.0

toInteger

public Integer toInteger()
 
Transform a Number into an Integer
Returns:
an Integer
Since:
1.0

toLong

public Long toLong()
 
Transform a Number into a Long
Returns:
an Long
Since:
1.0

unaryMinus

public Number unaryMinus()
 
Negates the number. Equivalent to the '-' operator when it preceeds a single operand, i.e. -10
Returns:
the negation of the number
Since:
1.5.0

upto

public void upto(Number to, Closure closure)
 
Iterates from this number up to the given number, inclusive, incrementing by one each time.
Parameters:
to - another Number to go up to.
closure - the closure to call.
Since:
1.0

xor

public Number xor(Number right)
 
Bitwise XOR together two Numbers. Called when the '|' operator is used.
Parameters:
right - another Number to bitwse XOR.
Returns:
the bitwise XOR of both Numbers
Since:
1.0
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