本文整理了Java中java.lang.Character.codePointAt()方法的一些代码示例，展示了Character.codePointAt()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。Character.codePointAt()方法的具体详情如下：
包路径：java.lang.Character
类名称：Character
方法名：codePointAt

Character.codePointAt介绍

[英]Returns the code point at index in the specified sequence of character units. If the unit at index is a high-surrogate unit, index + 1 is less than the length of the sequence and the unit at index + 1 is a low-surrogate unit, then the supplementary code point represented by the pair is returned; otherwise the charvalue at index is returned.
[中]

代码示例

代码示例来源：origin: libgdx/libgdx

/** Retrieves the Unicode code point value at the {@code index}.
 * 
 * @param index the index to the {@code char} code unit.
 * @return the Unicode code point value.
 * @throws IndexOutOfBoundsException if {@code index} is negative or greater than or equal to {@link #length()}.
 * @see Character
 * @see Character#codePointAt(char[], int, int)
 * @since 1.5 */
public int codePointAt (int index) {
  if (index < 0 || index >= length) {
    throw new StringIndexOutOfBoundsException(index);
  }
  return Character.codePointAt(chars, index, length);
}

代码示例来源：origin: libgdx/libgdx

/** Retrieves the Unicode code point value at the {@code index}.
 * 
 * @param index the index to the {@code char} code unit.
 * @return the Unicode code point value.
 * @throws IndexOutOfBoundsException if {@code index} is negative or greater than or equal to {@link #length()}.
 * @see Character
 * @see Character#codePointAt(char[], int, int)
 * @since 1.5 */
public int codePointAt (int index) {
  if (index < 0 || index >= length) {
    throw new StringIndexOutOfBoundsException(index);
  }
  return Character.codePointAt(chars, index, length);
}

代码示例来源：origin: org.apache.commons/commons-lang3

/**
 * Implementation of translate that maps onto the abstract translate(int, Writer) method.
 * {@inheritDoc}
 */
@Override
public final int translate(final CharSequence input, final int index, final Writer out) throws IOException {
  final int codepoint = Character.codePointAt(input, index);
  final boolean consumed = translate(codepoint, out);
  return consumed ? 1 : 0;
}

代码示例来源：origin: google/guava

private static int encodedLengthGeneral(CharSequence sequence, int start) {
 int utf16Length = sequence.length();
 int utf8Length = 0;
 for (int i = start; i < utf16Length; i++) {
  char c = sequence.charAt(i);
  if (c < 0x800) {
   utf8Length += (0x7f - c) >>> 31; // branch free!
  } else {
   utf8Length += 2;
   // jdk7+: if (Character.isSurrogate(c)) {
   if (MIN_SURROGATE <= c && c <= MAX_SURROGATE) {
    // Check that we have a well-formed surrogate pair.
    if (Character.codePointAt(sequence, i) == c) {
     throw new IllegalArgumentException(unpairedSurrogateMsg(i));
    }
    i++;
   }
  }
 }
 return utf8Length;
}

代码示例来源：origin: redisson/redisson

private static int[] toCodePoints(char[] str) {
  int[] codePoints = new int[Character.codePointCount(str, 0, str.length)];
  for (int i = 0, c = 0; i < str.length; c++) {
    int cp = Character.codePointAt(str, i);
    codePoints[c] = cp;
    i += Character.charCount(cp);
  }
  return codePoints;
}

代码示例来源：origin: oracle/opengrok

private static int nextTestWhitespaceLength(boolean match, String str,
  int off) {
  int i = 0;
  while (off + i < str.length()) {
    int cp = Character.codePointAt(str, off + i);
    if ((Character.isWhitespace(cp) || Character.isISOControl(cp)) !=
      match) {
      return i;
    }
    i += Character.charCount(cp);
  }
  return str.length() - off;
}

代码示例来源：origin: speedment/speedment

private String codePoints(String c) {
  final StringJoiner str = new StringJoiner(" ");
  for (int i = 0; i < c.length(); i++) {
    str.add(String.valueOf(Character.codePointAt(c, i)));
  }
  return str.toString();
}

代码示例来源：origin: prestodb/presto

private static int encodedLengthGeneral(CharSequence sequence, int start) {
 int utf16Length = sequence.length();
 int utf8Length = 0;
 for (int i = start; i < utf16Length; i++) {
  char c = sequence.charAt(i);
  if (c < 0x800) {
   utf8Length += (0x7f - c) >>> 31; // branch free!
  } else {
   utf8Length += 2;
   // jdk7+: if (Character.isSurrogate(c)) {
   if (MIN_SURROGATE <= c && c <= MAX_SURROGATE) {
    // Check that we have a well-formed surrogate pair.
    if (Character.codePointAt(sequence, i) == c) {
     throw new IllegalArgumentException(unpairedSurrogateMsg(i));
    }
    i++;
   }
  }
 }
 return utf8Length;
}

代码示例来源：origin: wildfly/wildfly

public int peekNext() throws NoSuchElementException {
  if (! hasNext()) throw new NoSuchElementException();
  return Character.codePointAt(chars, offs + idx);
}

代码示例来源：origin: wildfly/wildfly

public int peekNext() throws NoSuchElementException {
  if (! hasNext()) throw new NoSuchElementException();
  return Character.codePointAt(chars, offs + idx);
}

代码示例来源：origin: robovm/robovm

/**
 * Returns the Unicode code point at the given {@code index}.
 *
 * @throws IndexOutOfBoundsException if {@code index < 0 || index >= length()}
 * @see Character#codePointAt(char[], int, int)
 * @since 1.5
 */
public int codePointAt(int index) {
  if (index < 0 || index >= count) {
    throw indexAndLength(index);
  }
  return Character.codePointAt(value, offset + index, offset + count);
}

代码示例来源：origin: google/j2objc

private static int encodedLengthGeneral(CharSequence sequence, int start) {
 int utf16Length = sequence.length();
 int utf8Length = 0;
 for (int i = start; i < utf16Length; i++) {
  char c = sequence.charAt(i);
  if (c < 0x800) {
   utf8Length += (0x7f - c) >>> 31; // branch free!
  } else {
   utf8Length += 2;
   // jdk7+: if (Character.isSurrogate(c)) {
   if (MIN_SURROGATE <= c && c <= MAX_SURROGATE) {
    // Check that we have a well-formed surrogate pair.
    if (Character.codePointAt(sequence, i) == c) {
     throw new IllegalArgumentException(unpairedSurrogateMsg(i));
    }
    i++;
   }
  }
 }
 return utf8Length;
}

代码示例来源：origin: jenkinsci/configuration-as-code-plugin

private static int[] toCodePoints(char[] str) {
  int[] codePoints = new int[Character.codePointCount(str, 0, str.length)];
  for (int i = 0, c = 0; i < str.length; c++) {
    int cp = Character.codePointAt(str, i);
    codePoints[c] = cp;
    i += Character.charCount(cp);
  }
  return codePoints;
}

代码示例来源：origin: AsyncHttpClient/async-http-client

private static StringBuilder appendEncoded(StringBuilder sb, CharSequence input, BitSet dontNeedEncoding, boolean encodeSpaceAsPlus) {
 int c;
 for (int i = 0; i < input.length(); i += Character.charCount(c)) {
  c = Character.codePointAt(input, i);
  if (c <= 127) {
   if (dontNeedEncoding.get(c)) {
    sb.append((char) c);
   } else {
    appendSingleByteEncoded(sb, c, encodeSpaceAsPlus);
   }
  } else {
   appendMultiByteEncoded(sb, c);
  }
 }
 return sb;
}

代码示例来源：origin: wildfly/wildfly

public int next() {
  if (! hasNext()) throw new NoSuchElementException();
  try {
    offset++;
    return Character.codePointAt(chars, offs + idx);
  } finally {
    idx = Character.offsetByCodePoints(chars, offs, len, offs + idx, 1) - offs;
  }
}

代码示例来源：origin: wildfly/wildfly

public int previous() {
  if (! hasPrevious()) throw new NoSuchElementException();
  idx = Character.offsetByCodePoints(chars, offs, len, offs + idx, - 1) - offs;
  offset--;
  return Character.codePointAt(chars, offs + idx);
}

代码示例来源：origin: wildfly/wildfly

public int prev() {
  if (! hasPrev()) throw new NoSuchElementException();
  idx = Character.offsetByCodePoints(chars, offs, len, offs + idx, -1) - offs;
  offset--;
  return Character.codePointAt(chars, offs + idx);
}

代码示例来源：origin: wildfly/wildfly

public int next() {
  if (! hasNext()) throw new NoSuchElementException();
  try {
    offset++;
    return Character.codePointAt(chars, offs + idx);
  } finally {
    idx = Character.offsetByCodePoints(chars, offs, len, offs + idx, 1) - offs;
  }
}

代码示例来源：origin: google/guava

update(3, charToThreeUtf8Bytes(c));
} else {
 int codePoint = Character.codePointAt(input, i);
 if (codePoint == c) {

代码示例来源：origin: google/guava

len += 3;
} else {
 int codePoint = Character.codePointAt(input, i);
 if (codePoint == c) {