java.util.Collections.min()方法的使用及代码示例
本文整理了Java中java.util.Collections.min()方法的一些代码示例，展示了Collections.min()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Collections.min()方法的具体详情如下：
包路径：java.util.Collections
类名称：Collections
方法名：min
Collections.min介绍
[英]Searches the specified collection for the minimum element.
[中]
代码示例
代码示例来源：origin: stackoverflow.com
import java.util.Arrays;
import java.util.Collections;
import org.apache.commons.lang.ArrayUtils;
public class MinMaxValue {
public static void main(String[] args) {
char[] a = {'3', '5', '1', '4', '2'};
List b = Arrays.asList(ArrayUtils.toObject(a));
System.out.println(Collections.min(b));
System.out.println(Collections.max(b));
}
}代码示例来源：origin: jersey/jersey
public boolean contains(List<Integer> data) {
if (Collections.min(data) < lower()
|| Collections.max(data) > upper()) {
return false;
} else {
return true;
}
}
}代码示例来源：origin: apache/kylin
private void setupMapper(CubeSegment cubeSeg) throws IOException {
// set the segment's offset info to job conf
Map<Integer, Long> offsetStart = cubeSeg.getSourcePartitionOffsetStart();
Map<Integer, Long> offsetEnd = cubeSeg.getSourcePartitionOffsetEnd();
Integer minPartition = Collections.min(offsetStart.keySet());
Integer maxPartition = Collections.max(offsetStart.keySet());
job.getConfiguration().set(CONFIG_KAFKA_PARITION_MIN, minPartition.toString());
job.getConfiguration().set(CONFIG_KAFKA_PARITION_MAX, maxPartition.toString());
for(Integer partition: offsetStart.keySet()) {
job.getConfiguration().set(CONFIG_KAFKA_PARITION_START + partition, offsetStart.get(partition).toString());
job.getConfiguration().set(CONFIG_KAFKA_PARITION_END + partition, offsetEnd.get(partition).toString());
}
job.setMapperClass(KafkaFlatTableMapper.class);
job.setInputFormatClass(KafkaInputFormat.class);
job.setOutputKeyClass(BytesWritable.class);
job.setOutputValueClass(Text.class);
job.setOutputFormatClass(SequenceFileOutputFormat.class);
job.setNumReduceTasks(0);
}代码示例来源：origin: FudanNLP/fnlp
public ArrayList<Integer> normalized(WDataSet wds){
ArrayList<Integer> wNormalized = new ArrayList<Integer>();
double max, min, wNDouble;
int i, wNormalInt;
double wNormal;
max = Collections.max(wds.w);
min = Collections.min(wds.w);
if(max != min)
for(i = 0; i < wds.graph.getNVerts(); i++){
wNDouble = wds.w.get(i);
wNormal = (wNDouble - min) / (max - min);
wNormalInt = (int)(100 * wNormal);
wds.w.set(i, wNormal);
wNormalized.add(wNormalInt);
}
else
for(i = 0; i < wds.graph.getNVerts(); i++)
wNormalized.add(100);
return wNormalized;
}代码示例来源：origin: Graylog2/graylog2-server
private void fillEmptyTimestamps(Map<Long, Map<String, Number>> results) {
final long minTimestamp = Collections.min(results.keySet());
final long maxTimestamp = Collections.max(results.keySet());
final MutableDateTime currentTime = new MutableDateTime(minTimestamp, DateTimeZone.UTC);
while (currentTime.getMillis() < maxTimestamp) {
final Map<String, Number> entry = results.get(currentTime.getMillis());
// advance timestamp by the interval
currentTime.add(interval.getPeriod());
if (entry == null) {
// synthesize a 0 value for this timestamp
results.put(currentTime.getMillis(), EMPTY_RESULT);
}
}
}代码示例来源：origin: jersey/jersey
final int i = data.indexOf(Collections.min(data));
g.setColor(minColor);
g.fillRect(xs[i] - step / 2, ys[i] - step / 2, step, step);
final int i = data.indexOf(Collections.max(data));
g.setColor(maxColor);
g.fillRect(xs[i] - step / 2, ys[i] - step / 2, step, step);代码示例来源：origin: cucumber/cucumber-jvm
public byte exitStatus() {
if (results.isEmpty()) { return DEFAULT; }
if (runtimeOptions.isWip()) {
return min(results, SEVERITY).is(Result.Type.PASSED) ? ERRORS : DEFAULT;
}
return max(results, SEVERITY).isOk(runtimeOptions.isStrict()) ? DEFAULT : ERRORS;
}
}代码示例来源：origin: florent37/CameraFragment
Size maxPictureSize = Collections.max(choices, new CompareSizesByArea2());
Size minPictureSize = Collections.min(choices, new CompareSizesByArea2());代码示例来源：origin: florent37/CameraFragment
Size maxPictureSize = Collections.max(choices, new CompareSizesByArea2());
Size minPictureSize = Collections.min(choices, new CompareSizesByArea2());代码示例来源：origin: apache/hbase
private ResultScanner scan(Table ht, byte[] cf,
Integer[] rowIndexes, Integer[] columnIndexes,
Long[] versions, int maxVersions)
throws IOException {
Arrays.asList(rowIndexes);
byte startRow[] = Bytes.toBytes("row:" +
Collections.min( Arrays.asList(rowIndexes)));
byte endRow[] = Bytes.toBytes("row:" +
Collections.max( Arrays.asList(rowIndexes))+1);
Scan scan = new Scan(startRow, endRow);
for (Integer colIdx: columnIndexes) {
byte column[] = Bytes.toBytes("column:" + colIdx);
scan.addColumn(cf, column);
}
scan.setMaxVersions(maxVersions);
scan.setTimeRange(Collections.min(Arrays.asList(versions)),
Collections.max(Arrays.asList(versions))+1);
ResultScanner scanner = ht.getScanner(scan);
return scanner;
}代码示例来源：origin: gocd/gocd
private PipelineInstanceModels loadHistory(String pipelineName, List<Long> ids) {
if (ids.isEmpty()) {
return PipelineInstanceModels.createPipelineInstanceModels();
}
Map<String, Object> args = arguments("pipelineName", pipelineName)
.and("from", Collections.min(ids))
.and("to", Collections.max(ids)).asMap();
PipelineInstanceModels history = PipelineInstanceModels.createPipelineInstanceModels(
(List<PipelineInstanceModel>) getSqlMapClientTemplate().queryForList("getPipelineHistoryByName", args));
for (PipelineInstanceModel pipelineInstanceModel : history) {
loadPipelineHistoryBuildCause(pipelineInstanceModel);
}
return history;
}代码示例来源：origin: gocd/gocd
@SuppressWarnings("unchecked")
private List<Map<String, Object>> flatHistory(IBatisUtil.IBatisArgument arguments) {
List<Long> pipelineIds = getSqlMapClientTemplate().queryForList("limitedPipelineIds", arguments.asMap());
arguments.and("limitedPipelineIds", pipelineIds);
long maxId = Collections.max(pipelineIds);
long minId = Collections.min(pipelineIds);
arguments = arguments.and("maxId", maxId).and("minId", minId);
return (List<Map<String, Object>>) getSqlMapClientTemplate()
.queryForList("getAllPropertiesHistory", arguments.asMap());
}代码示例来源：origin: googlesamples/android-Camera2Basic
return Collections.min(bigEnough, new CompareSizesByArea());
} else if (notBigEnough.size() > 0) {
return Collections.max(notBigEnough, new CompareSizesByArea());
} else {
Log.e(TAG, "Couldn't find any suitable preview size");代码示例来源：origin: apache/hbase
/**
* Uses the TimestampFilter on a Get to request a specified list of
* versions for the row/column specified by rowIdx & colIdx.
*
*/
private Cell[] getNVersions(Table ht, byte[] cf, int rowIdx,
int colIdx, List<Long> versions)
throws IOException {
byte row[] = Bytes.toBytes("row:" + rowIdx);
byte column[] = Bytes.toBytes("column:" + colIdx);
Get get = new Get(row);
get.addColumn(cf, column);
get.setMaxVersions();
get.setTimeRange(Collections.min(versions), Collections.max(versions)+1);
Result result = ht.get(get);
return result.rawCells();
}代码示例来源：origin: stackoverflow.com
versions.add(new Version("1.01.0"));
versions.add(new Version("1.00.1"));
Collections.min(versions).get() // return min version
Collections.max(versions).get() // return max version代码示例来源：origin: guoguibing/librec
maxRate = Collections.max(ratingScale);
minRate = Collections.min(ratingScale);
if (minRate == maxRate) {
minRate = 0;代码示例来源：origin: stackoverflow.com
List<Integer> list = Arrays.asList(100,2,3,4,5,6,7,67,2,32);
int min = Collections.min(list);
int max = Collections.max(list);
System.out.println(min);
System.out.println(max);代码示例来源：origin: yahoo/egads
/**
* Drops as many of the highest or lowest values as possible, leaving
* at least one value in the list.
* @param accumulator A non-null accumulator list.
* @param count A count of 1 or more.
* @param highest Drop higher values == true or drop lower values == false.
*/
public static void drop(final List<WeightedValue> accumulator,
final int count, final boolean highest) {
for (int x = 0; x < count; x++) {
if (accumulator.size() <= 1) {
break;
}
if (highest) {
accumulator.remove(Collections.max(accumulator));
} else {
accumulator.remove(Collections.min(accumulator));
}
}
}代码示例来源：origin: yahoo/egads
/**
* Creates a histogram of the provided data.
*
* @param data list of observations
* @param breaks number of breaks in the histogram
* @return List of integer values size of the breaks
*/
public static List<Integer> getHistogram(List<Double> data, int breaks) {
if (data.isEmpty()) {
return Collections.emptyList();
}
List<Integer> ret = new ArrayList<Integer>(breaks);
for (int i = 0; i < breaks; i++) {
ret.add(0);
}
double min = Collections.min(data);
double range = Collections.max(data) - min + 1;
double step = range / breaks;
for (double point : data) {
// Math.min necessary because rounding error -> AIOOBE
int index = Math.min((int) ((point - min) / step), breaks - 1);
ret.set(index, ret.get(index) + 1);
}
return ret;
}代码示例来源：origin: yahoo/egads
/**
* Same as <code>getHistogram</code> but operates on <code>BigIntegers</code>.
*/
public static List<Integer> getHistogramBigInt(List<BigInteger> data, int breaks) {
if (data.isEmpty()) {
return Collections.emptyList();
}
List<Integer> ret = new ArrayList<Integer>(breaks);
for (int i = 0; i < breaks; i++) {
ret.add(0);
}
BigInteger min = Collections.min(data);
BigInteger max = Collections.max(data);
BigInteger range = max.subtract(min).add(BigInteger.valueOf(1));
BigInteger step = range.divide(BigInteger.valueOf(breaks));
if (step.equals(BigInteger.ZERO)) {
return Collections.emptyList(); // too small
}
for (BigInteger point : data) {
int index = point.subtract(min).divide(step).intValue();
// Math.min necessary because rounding error -> AIOOBE
index = Math.min(index, breaks - 1);
ret.set(index, ret.get(index) + 1);
}
return ret;
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