angles.java

java2参考大全上的例子的源码和自己的理解.

package toradians;

/**
 120.0 degrees is 2.0943951023931953 radians.
 1.312 radians is 75.17206272116401 degrees.

 */

// Demonstrate toDegrees() and toRadians().
class Angles {
  public static void main(String args[]) {
    double theta = 120.0;

    System.out.println(theta + " degrees is " +
                       Math.toRadians(theta) + " radians.");

    theta = 1.312;
    System.out.println(theta + " radians is " +
                       Math.toDegrees(theta) + " degrees.");
  }
}