mathtest.java

这是java的一本书上的源代码

// Exercise 6.3: MathTest.java
// Testing the Math class methods.

public class MathTest {

   public static void main( String args[] )
   {
      System.out.println( "Math.abs( 23.7 ) = " + Math.abs( 23.7 ) );
      System.out.println( "Math.abs( 0.0 ) = " + Math.abs( 0.0 ) );
      System.out.println( "Math.abs( -23.7 ) = " + Math.abs( -23.7 ) );
      System.out.println( "Math.ceil( 9.2 ) = " + Math.ceil( 9.2 ) );
      System.out.println( "Math.ceil( -9.8 ) = " + Math.ceil( -9.8 ) );
      System.out.println( "Math.cos( 0.0 ) = " + Math.cos( 0.0 ) );
      System.out.println( "Math.exp( 1.0 ) = " + Math.exp( 1.0 ) );
      System.out.println( "Math.exp( 2.0 ) = " + Math.exp( 2.0 ) );
      System.out.println( "Math.floor( 9.2 ) = " + Math.floor( 9.2 ) );
      System.out.println( "Math.floor( -9.8 ) = " + Math.floor( -9.8 ) );
      System.out.println( "Math.log( Math.E ) = " + 
         Math.log( Math.E ) );
      System.out.println( "Math.log( Math.E * Math.E ) = " + 
         Math.log( Math.E * Math.E ) );
      System.out.println( "Math.max( 2.3, 12.7 ) = " +
         Math.max( 2.3, 12.7 ) );
      System.out.println( "Math.max( -2.3, -12.7 ) = " +
         Math.max( -2.3, -12.7 ) );
      System.out.println( "Math.min( 2.3, 12.7 ) = " +
         Math.min( 2.3, 12.7 ) );
      System.out.println( "Math.min( -2.3, -12.7 ) = " +
         Math.min( -2.3, -12.7 ) );
      System.out.println( "Math.pow( 2.0, 7.0 ) = " + 
         Math.pow( 2.0, 7.0 ) );
      System.out.println( "Math.pow( 9.0, 0.5 ) = " + 
         Math.pow( 9.0, 0.5 ) );
      System.out.println( "Math.sin( 0.0 ) = " + Math.sin( 0.0 ) );
      System.out.println( "Math.sqrt( 900.0 ) = " + Math.sqrt( 900.0 ) );
      System.out.println( "Math.sqrt( 9.0 ) = " + Math.sqrt( 9.0 ) );
      System.out.println( "Math.tan( 0.0 ) = " + Math.tan( 0.0 ) );

   } // end main

} // end class MathTest


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