Mega Code Archive
TimeComputation for processing sqrt and Input and Output operations
<![CDATA[
/*
* Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
* pioneering role in inventing and promulgating (and standardizing) the Java
* language and environment is gratefully acknowledged.
*
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/
import java.io.BufferedOutputStream;
import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.DecimalFormat;
/**
* TimeComputation for processing sqrt and Input and Output operations.
*
* @author Ian Darwin, http://www.darwinsys.com/
* @version $Id: TimeComputation.java,v 1.7 2004/02/09 03:33:46 ian Exp $
*/
public class TimeComputation {
public static void main(String[] argv) {
try {
new TimeComputation().run();
} catch (IOException e) {
System.err.println(e);
}
}
public void run() throws IOException {
DataOutputStream n = new DataOutputStream(new BufferedOutputStream(
new FileOutputStream("rntsoft")));
long t0, t1;
System.out.println("Java Starts at "
+ (t0 = System.currentTimeMillis()));
double k;
for (int i = 0; i < 100000; i++) {
k = 2.1 * Math.sqrt((double) i);
n.writeDouble(k);
}
System.out.println("Java Ends at " + (t1 = System.currentTimeMillis()));
double deltaT = t1 - t0;
System.out.println("This run took "
+ DecimalFormat.getInstance().format(deltaT / 1000.)
+ " seconds.");
}
}
]]>