mathtest.java

《java大学教程》源码

// Exercise 4.3: 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( 2.718282 ) = " +
                          Math.log( 2.718282 ) );
      System.out.println( "Math.log( 7.389056 ) = " +
                          Math.log( 7.389056 ) );
      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, 7 ) = " +
                          Math.pow( 2, 7 ) );
      System.out.println( "Math.pow( 9, .5 ) = " +
                          Math.pow( 9, .5 ) );
      System.out.println( "Math.sin( 0.0 ) = " +
                          Math.sin( 0.0 ) );
      System.out.println( "Math.sqrt( 25.0 ) = " +
                          Math.sqrt( 25.0 ) );
      System.out.println( "Math.tan( 0.0 ) = " +
                          Math.tan( 0.0 ) );
   }
}

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