java.util.BitSet类的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.util.BitSet类的一些代码示例，展示了BitSet类的具体用法。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。BitSet类的具体详情如下：
包路径：java.util.BitSet
类名称：BitSet

BitSet介绍

[英]The BitSet class implements a bit array. Each element is either true or false. A BitSet is created with a given size and grows automatically if this size is exceeded.
[中]位集类实现了一个bit array。每个元素要么为真，要么为假。将使用给定的大小创建位集，如果超过此大小，位集将自动增长。

代码示例

代码示例来源：origin: jenkinsci/jenkins

public ArgumentListBuilder prepend(String... args) {
  // left-shift the mask
  BitSet nm = new BitSet(this.args.size()+args.length);
  for(int i=0; i<this.args.size(); i++)
    nm.set(i+args.length, mask.get(i));
  mask = nm;
  this.args.addAll(0, Arrays.asList(args));
  return this;
}

代码示例来源：origin: pxb1988/dex2jar

private void initExcludeColor(BitSet excludeColor, Reg as) {
  excludeColor.clear();
  for (Reg ex : as.excludes) {
    if (ex.reg >= 0) {
      excludeColor.set(ex.reg);
      if (ex.type == 'J' || ex.type == 'D') {
        excludeColor.set(ex.reg + 1);
      }
    }
  }
}

代码示例来源：origin: apache/incubator-druid

/**
 * Clear the info about which rows (in which original iterators and which row nums within them) were combined on
 * the previous step.
 */
private void clearCombinedRowsInfo()
{
 for (int originalIteratorIndex = indexesOfCurrentlyCombinedOriginalIterators.nextSetBit(0);
    originalIteratorIndex >= 0;
    originalIteratorIndex = indexesOfCurrentlyCombinedOriginalIterators.nextSetBit(originalIteratorIndex + 1)) {
  minCurrentlyCombinedRowNumByOriginalIteratorIndex[originalIteratorIndex] =
    MIN_CURRENTLY_COMBINED_ROW_NUM_UNSET_VALUE;
 }
 indexesOfCurrentlyCombinedOriginalIterators.clear();
}

代码示例来源：origin: google/guava

private BitSetMatcher(BitSet table, String description) {
 super(description);
 if (table.length() + Long.SIZE < table.size()) {
  table = (BitSet) table.clone();
  // If only we could actually call BitSet.trimToSize() ourselves...
 }
 this.table = table;
}

代码示例来源：origin: netty/netty

public void setCleanerFlag(int index) {
    if (cleanerFlags == null) {
      cleanerFlags = new BitSet();
    }
    cleanerFlags.set(index);
  }
}

代码示例来源：origin: redisson/redisson

private static byte[] toByteArrayReverse(BitSet bits) {
  byte[] bytes = new byte[bits.length() / 8 + 1];
  for (int i = 0; i < bits.length(); i++) {
    if (bits.get(i)) {
      final int value = bytes[i / 8] | (1 << (7 - (i % 8)));
      bytes[i / 8] = (byte) value;
    }
  }
  return bytes;
}

代码示例来源：origin: apache/zeppelin

@Override
public void write(org.apache.thrift.protocol.TProtocol prot, appendOutput_args struct) throws org.apache.thrift.TException {
 TTupleProtocol oprot = (TTupleProtocol) prot;
 BitSet optionals = new BitSet();
 if (struct.isSetEvent()) {
  optionals.set(0);
 }
 oprot.writeBitSet(optionals, 1);
 if (struct.isSetEvent()) {
  struct.event.write(oprot);
 }
}

代码示例来源：origin: apache/zeppelin

@Override
 public void read(org.apache.thrift.protocol.TProtocol prot, getAllResources_result struct) throws org.apache.thrift.TException {
  TTupleProtocol iprot = (TTupleProtocol) prot;
  BitSet incoming = iprot.readBitSet(1);
  if (incoming.get(0)) {
   {
    org.apache.thrift.protocol.TList _list29 = new org.apache.thrift.protocol.TList(org.apache.thrift.protocol.TType.STRING, iprot.readI32());
    struct.success = new ArrayList<String>(_list29.size);
    String _elem30;
    for (int _i31 = 0; _i31 < _list29.size; ++_i31)
    {
     _elem30 = iprot.readString();
     struct.success.add(_elem30);
    }
   }
   struct.setSuccessIsSet(true);
  }
 }
}

代码示例来源：origin: apache/hive

@Override
 public void read(org.apache.thrift.protocol.TProtocol prot, EnvironmentContext struct) throws org.apache.thrift.TException {
  TTupleProtocol iprot = (TTupleProtocol) prot;
  BitSet incoming = iprot.readBitSet(1);
  if (incoming.get(0)) {
   {
    org.apache.thrift.protocol.TMap _map324 = new org.apache.thrift.protocol.TMap(org.apache.thrift.protocol.TType.STRING, org.apache.thrift.protocol.TType.STRING, iprot.readI32());
    struct.properties = new HashMap<String,String>(2*_map324.size);
    String _key325;
    String _val326;
    for (int _i327 = 0; _i327 < _map324.size; ++_i327)
    {
     _key325 = iprot.readString();
     _val326 = iprot.readString();
     struct.properties.put(_key325, _val326);
    }
   }
   struct.setPropertiesIsSet(true);
  }
 }
}

代码示例来源：origin: stanfordnlp/CoreNLP

/** helper for gap encoding. */
private static byte[] bitSetToByteArray(BitSet bitSet) {
 while (bitSet.length() % 8 != 0) { bitSet.set(bitSet.length(), true); }
 byte[] array = new byte[bitSet.length()/8];
 for (int i = 0; i < array.length; i++) {
  int offset = i * 8;
  int index = 0;
  for (int j = 0; j < 8; j++) {
   index <<= 1;
   if (bitSet.get(offset+j)) { index++; }
  }
  array[i] = (byte)(index - 128);
 }
 return array;
}

代码示例来源：origin: apache/zeppelin

@Override
public void write(org.apache.thrift.protocol.TProtocol prot, getStatus_result struct) throws org.apache.thrift.TException {
 TTupleProtocol oprot = (TTupleProtocol) prot;
 BitSet optionals = new BitSet();
 if (struct.isSetSuccess()) {
  optionals.set(0);
 }
 oprot.writeBitSet(optionals, 1);
 if (struct.isSetSuccess()) {
  oprot.writeString(struct.success);
 }
}

代码示例来源：origin: skylot/jadx

if (s.getIDom() != block) {
    if (domFrontier == null) {
      domFrontier = new BitSet(blocks.size());
    domFrontier.set(s.getId());
  for (int p = frontier.nextSetBit(0); p >= 0; p = frontier.nextSetBit(p + 1)) {
    if (blocks.get(p).getIDom() != block) {
      if (domFrontier == null) {
        domFrontier = new BitSet(blocks.size());
      domFrontier.set(p);
if (domFrontier == null || domFrontier.cardinality() == 0) {
  domFrontier = EMPTY;

代码示例来源：origin: spring-projects/spring-framework

private void doParse(String[] fields) {
  setNumberHits(this.seconds, fields[0], 0, 60);
  setNumberHits(this.minutes, fields[1], 0, 60);
  setNumberHits(this.hours, fields[2], 0, 24);
  setDaysOfMonth(this.daysOfMonth, fields[3]);
  setMonths(this.months, fields[4]);
  setDays(this.daysOfWeek, replaceOrdinals(fields[5], "SUN,MON,TUE,WED,THU,FRI,SAT"), 8);
  if (this.daysOfWeek.get(7)) {
    // Sunday can be represented as 0 or 7
    this.daysOfWeek.set(0);
    this.daysOfWeek.clear(7);
  }
}

代码示例来源：origin: google/guava

@Override
 void setBits(BitSet table) {
  if (containsZero) {
   table.set(0);
  }
  for (char c : this.table) {
   if (c != 0) {
    table.set(c);
   }
  }
 }
}

代码示例来源：origin: apache/zeppelin

@Override
public void write(org.apache.thrift.protocol.TProtocol prot, resourceGet_result struct) throws org.apache.thrift.TException {
 TTupleProtocol oprot = (TTupleProtocol) prot;
 BitSet optionals = new BitSet();
 if (struct.isSetSuccess()) {
  optionals.set(0);
 }
 oprot.writeBitSet(optionals, 1);
 if (struct.isSetSuccess()) {
  oprot.writeBinary(struct.success);
 }
}

代码示例来源：origin: skylot/jadx

public static BlockNode getPathCross(MethodNode mth, BlockNode b1, BlockNode b2) {
  if (b1 == null || b2 == null) {
    return null;
  }
  BitSet b = new BitSet();
  b.or(b1.getDomFrontier());
  b.and(b2.getDomFrontier());
  b.clear(b1.getId());
  b.clear(b2.getId());
  if (b.cardinality() == 1) {
    BlockNode end = mth.getBasicBlocks().get(b.nextSetBit(0));
    if (isPathExists(b1, end) && isPathExists(b2, end)) {
      return end;
    }
  }
  if (isPathExists(b1, b2)) {
    return b2;
  }
  if (isPathExists(b2, b1)) {
    return b1;
  }
  return null;
}

代码示例来源：origin: apache/zeppelin

@Override
public void write(org.apache.thrift.protocol.TProtocol prot, getProgress_result struct) throws org.apache.thrift.TException {
 TTupleProtocol oprot = (TTupleProtocol) prot;
 BitSet optionals = new BitSet();
 if (struct.isSetSuccess()) {
  optionals.set(0);
 }
 oprot.writeBitSet(optionals, 1);
 if (struct.isSetSuccess()) {
  oprot.writeI32(struct.success);
 }
}

代码示例来源：origin: google/guava

@Override
public boolean matches(char c) {
 return table.get(c);
}

代码示例来源：origin: google/guava

@GwtIncompatible // java.util.BitSet
private void doTestSetBits(CharMatcher matcher) {
 BitSet bitset = new BitSet();
 matcher.setBits(bitset);
 for (int i = Character.MIN_VALUE; i <= Character.MAX_VALUE; i++) {
  assertEquals(matcher.matches((char) i), bitset.get(i));
 }
}

代码示例来源：origin: google/guava

static CharMatcher from(BitSet chars, String description) {
 // Compute the filter.
 long filter = 0;
 int size = chars.cardinality();
 boolean containsZero = chars.get(0);
 // Compute the hash table.
 char[] table = new char[chooseTableSize(size)];
 int mask = table.length - 1;
 for (int c = chars.nextSetBit(0); c != -1; c = chars.nextSetBit(c + 1)) {
  // Compute the filter at the same time.
  filter |= 1L << c;
  int index = smear(c) & mask;
  while (true) {
   // Check for empty.
   if (table[index] == 0) {
    table[index] = (char) c;
    break;
   }
   // Linear probing.
   index = (index + 1) & mask;
  }
 }
 return new SmallCharMatcher(table, filter, containsZero, description);
}

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