數學類toDegrees()方法 (Math class toDegrees() method)

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

  toDegrees()方法在java.lang包中可用。

• toDegrees() method is used to convert an angle from radians to degrees.

  toDegrees()方法用于將角度從弧度轉換為度。

• toDegrees() method is a static method, it is accessible with the class name too.

  toDegrees()方法是一個靜態方法，也可以使用類名進行訪問。

• toDegrees() method does not throw any exception.

  toDegrees()方法不會引發任何異常。

Note: The result of conversion an angle from radians to degrees is not generally exact.

注意：將角從弧度轉換為度的結果通常不準確。

Syntax:

句法：

    public static double toDegrees(double angle_in_radians);

Parameter(s):

參數：

• angle_in_radians – represents the values of an angle in radians.

  angle_in_radians –表示以弧度為單位的角度值。

Return value:

返回值：

The return type of this method is double – it returns the converted angle from radians to degrees.

這種方法的返回類型是雙 -它返回從弧度到度轉換后的角度。

Java程序演示toDegrees()方法的示例 (Java program to demonstrate example of toDegrees() method)

// Java program to demonstrate the example of 
// toDegrees(double angle_in_radians) method of Math Class
public class ToDegreesMethod {
public static void main(String[] args) {
// declaring the variables
double d1 = 60;
double d2 = -60;
double d3 = 90;
double d4 = -90;
// displaying the values
System.out.println("Angel values in radians...");
System.out.println("d1: " + d1);
System.out.println("d2: " + d2);
System.out.println("d3: " + d3);
System.out.println("d4: " + d4);
// converting angel value from radians to degrees
d1 = Math.toDegrees(d1);
d2 = Math.toDegrees(d2);
d3 = Math.toDegrees(d3);
d4 = Math.toDegrees(d4);
System.out.println("Angel values in degrees...");
System.out.println("d1: " + d1);
System.out.println("d2: " + d2);
System.out.println("d3: " + d3);
System.out.println("d4: " + d4);
}
}

Output

輸出量

E:\Programs>javac ToDegreesMethod.java
E:\Programs>java ToDegreesMethod
Angel values in radians...
d1: 60.0
d2: -60.0
d3: 90.0
d4: -90.0
Angel values in degrees...
d1: 3437.746770784939
d2: -3437.746770784939
d3: 5156.620156177409
d4: -5156.620156177409

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