/usr/share/doc/openjdk-11-jre-headless/demo/applets/SortDemo/BidirBubbleSortAlgorithm.java is in openjdk-11-demo 10.0.1+10-3ubuntu1.
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* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified. Additional steps
* required for a production-quality application, such as security checks,
* input validation and proper error handling, might not be present in
* this sample code.
*/
/**
* A bi-directional bubble sort demonstration algorithm
* SortAlgorithm.java, Thu Oct 27 10:32:35 1994
*
* @author James Gosling
*/
class BidirBubbleSortAlgorithm extends SortAlgorithm {
@Override
void sort(int a[]) throws Exception {
int j;
int limit = a.length;
int st = -1;
while (st < limit) {
st++;
limit--;
boolean swapped = false;
for (j = st; j < limit; j++) {
if (stopRequested) {
return;
}
if (a[j] > a[j + 1]) {
int T = a[j];
a[j] = a[j + 1];
a[j + 1] = T;
swapped = true;
}
pause(st, limit);
}
if (!swapped) {
return;
} else {
swapped = false;
}
for (j = limit; --j >= st;) {
if (stopRequested) {
return;
}
if (a[j] > a[j + 1]) {
int T = a[j];
a[j] = a[j + 1];
a[j + 1] = T;
swapped = true;
}
pause(st, limit);
}
if (!swapped) {
return;
}
}
}
}
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