isinfinite
Syntax:
句法：
public boolean isInfinite ();
public static boolean isInfinite (float value);
浮动类isInfinite()方法
(
Float class isInfinite() method
)
-
isInfinite() method
is available in
java.lang
package.
isInfinite()方法
在java.lang包中可用。 -
isInfinite() method
is used to check the infinity of this Float object (i.e. either positive infinity or negative infinity).
isInfinite()方法
用于检查此Float对象的无穷大(即正无穷大或负无穷大)。 -
isInfinite(float value) method
is used to check the infinity of the given argument is of float type (i.e. either positive infinity or negative infinity).
isInfinite(float value)方法
用于检查给定参数的无穷
大为
float类型(即正无穷大或负无穷大)。 -
These are non-static methods, they are accessible with the class object only and if we try to access the method with the class name then we will get an error.
这些是非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。
-
These methods do not throw an exception at the time of checking infinity.
这些方法在检查无穷大时不会引发异常。
Parameter(s):
参数：
-
In the First case –
isInfinite()
, we don’t pass any parameter or value.在第一种情况下–
isInfinite()
，我们不传递任何参数或值。 -
In the Second case –
isInfinite(float value)
, we pass only one parameter or value is of float type.在第二种情况下
-isInfinite(float value)
，我们仅传递一个参数或value为float类型。
Return value:
返回值：
The return type of this method is
boolean
, it returns a boolean value either true or false depending on the condition.
此方法的返回类型为boolean ，它根据条件返回布尔值true或false。
-
In the first case, if the given value represented by the object is either positive infinity or negative infinity, it returns true.
在第一种情况下，如果对象表示的给定值是正无穷大或负无穷大，则返回true。
-
In the second case, if the given value represented by the object is not either positive infinity or negative infinity, it returns false.
在第二种情况下，如果对象表示的给定值不是正无穷大或负无穷大，则返回false。
Example:
例：
// Java program to demonstrate the example
// of isInfinite() method of Float class
public class IsInfiniteOfFloatClass {
public static void main(String[] args) {
// Object initialization
Float ob1 = new Float(10.0 / 0.0);
Float ob2 = new Float(-20.0 / 0.0);
Float ob3 = new Float(20.0);
// Display ob1,ob2 and ob3 values
System.out.println("ob1: " + ob1);
System.out.println("ob2: " + ob2);
System.out.println("ob3: " + ob3);
// It checks infinity by calling ob1.isInfinite() for ob1
// and ob2.isInfinite() for ob2
boolean infinite1 = ob1.isInfinite();
boolean infinite2 = ob2.isInfinite();
// Display result values
System.out.println("ob1.isInfinite(): " + infinite1);
System.out.println("ob2.isInfinite(): " + infinite2);
// It checks infinity by calling Float.isInfinite(ob3) for ob3
boolean infinite3 = Float.isInfinite(ob3);
// Display result values
System.out.println("Float.isInfinite(ob3): " + infinite3);
}
}
Output
输出量
ob1: Infinity
ob2: -Infinity
ob3: 20.0
ob1.isInfinite(): true
ob2.isInfinite(): true
Float.isInfinite(ob3): false
翻译自:
https://www.includehelp.com/java/float-class-isinfinite-method-with-example.aspx
isinfinite