Float類floatToIntBits()方法 (Float class floatToIntBits() method)

• floatToIntBits() method is available in java.lang package.

  floatToIntBits()方法在java.lang包中可用。

• floatToIntBits() method follows IEEE 754 floating-point standards and according to standards, it returns the bits representation that denotes floating-point value.

  floatToIntBits()方法遵循IEEE 754浮點標準，并且根據標準，它返回表示浮點值的位表示形式。

• floatToIntBits() method is a static method, it is accessible with the class name too and if we try to access the method with the class object then also we will not get an error.

  floatToIntBits()方法是一個靜態方法，也可以使用類名進行訪問，如果嘗試使用類對象訪問該方法，那么也不會收到錯誤。

• floatToIntBits() method does not throw an exception at the time of representing bits.

  floatToIntBits()方法在表示位時不會引發異常。

Syntax:

句法：

    public static int floatToIntBits(float f);

Parameter(s):

參數：

• float f – represents the single precision floating point value.

  float f –表示單精度浮點值。

Return value:

返回值：

The return type of this method is float, it returns the bits that represent the single precision floating-point value.

此方法的返回類型為float ，它返回表示單個精度浮點值的位。

• If we pass "positive infinity", it returns the value "0x7f800000".

  如果我們傳遞“ positive infinity” ，它將返回值“ 0x7f800000” 。

• If we pass "negative infinity", it returns the value "0xff800000".

  如果我們傳遞“負無窮大” ，它將返回值“ 0xff800000” 。

• If we pass "NaN", it returns the value "0x7fc00000".

  如果我們傳遞“ NaN” ，它將返回值“ 0x7fc00000” 。

Example:

例：

// Java program to demonstrate the example 
// of floatToIntBits (float value)
// method of Float class
public class FloatToIntBitsOfFloatClass {
public static void main(String[] args) {
// Variables initialization
float value1 = 18.20f;
float value2 = 19.20f;
// Display value1,value2 values
System.out.println("value1: " + value1);
System.out.println("value2: " + value2);
// It returns the bits denoted by the single 
// precision floating-point argument by calling 
// Float.floatToIntBits(value1)
int result1 = Float.floatToIntBits(value1);
// It returns the bits denoted by the single 
// precision floating-point argument by calling 
// Float.floatToIntBits(value2)
int result2 = Float.floatToIntBits(value2);
// Display result1,result2 values
System.out.println("Float.floatToIntBits(value1): " + result1);
System.out.println("Float.floatToIntBits(value2): " + result2);
}
}

Output

輸出量

value1: 18.2
value2: 19.2
Float.floatToIntBits(value1): 1100061082
Float.floatToIntBits(value2): 1100585370

翻譯自: https://www.includehelp.com/java/float-class-floattointbits-method-with-example.aspx