java.lang.StringBuffer.setCharAt()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.lang.StringBuffer.setCharAt()方法的一些代码示例，展示了StringBuffer.setCharAt()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。StringBuffer.setCharAt()方法的具体详情如下：
包路径：java.lang.StringBuffer
类名称：StringBuffer
方法名：setCharAt

StringBuffer.setCharAt介绍

暂无

代码示例

代码示例来源：origin: log4j/log4j

/**
 *   Formats a count of milliseconds (0-999) into a numeric representation.
 *   @param millis Millisecond coun between 0 and 999.
 *   @param buf String buffer, may not be null.
 *   @param offset Starting position in buffer, the length of the
 *       buffer must be at least offset + 3.
 */
private static void millisecondFormat(
 final int millis, final StringBuffer buf, final int offset) {
 buf.setCharAt(offset, DIGITS.charAt(millis / 100));
 buf.setCharAt(offset + 1, DIGITS.charAt((millis / 10) % 10));
 buf.setCharAt(offset + 2, DIGITS.charAt(millis % 10));
}

代码示例来源：origin: org.apache.poi/poi

public void finish(StringBuffer toAppendTo) {
    if (hStart >= 0 && !showAmPm) {
      for (int i = 0; i < hLen; i++) {
        toAppendTo.setCharAt(hStart + i, 'H');
      }
    }
  }
}

代码示例来源：origin: log4j/log4j

public static String capitalize(String name) {
 if (Character.isLowerCase(name.charAt(0))) {
  if (name.length() == 1 || Character.isLowerCase(name.charAt(1))) {
   StringBuffer newname = new StringBuffer(name);
   newname.setCharAt(0, Character.toUpperCase(name.charAt(0)));
   return newname.toString();
  }
 }
 return name;
}

代码示例来源：origin: redisson/redisson

private CtClass lookupClass0(String classname, boolean notCheckInner)
  throws NotFoundException
{
  CtClass cc = null;
  do {
    try {
      cc = classPool.get(classname);
    }
    catch (NotFoundException e) {
      int i = classname.lastIndexOf('.');
      if (notCheckInner || i < 0)
        throw e;
      else {
        StringBuffer sbuf = new StringBuffer(classname);
        sbuf.setCharAt(i, '$');
        classname = sbuf.toString();
      }
    }
  } while (cc == null);
  return cc;
}

代码示例来源：origin: JetBrains/ideavim

@NotNull
public CharPointer set(char ch, int offset) {
 if (seq == null) {
  return this;
 }
 if (readonly) {
  throw new IllegalStateException("readonly string");
 }
 StringBuffer data = (StringBuffer)seq;
 while (pointer + offset >= data.length()) {
  data.append('\u0000');
 }
 data.setCharAt(pointer + offset, ch);
 return this;
}

代码示例来源：origin: org.apache.ant/ant

/**
 * Translates occurrences at a position of / or \ to correct separator of the
 * current platform and returns whether it had to do a
 * replacement.
 * @param buffer a buffer containing a string
 * @param pos the position in the string buffer to convert
 * @return true if the character was a / or \
 */
protected static boolean translateFileSep(StringBuffer buffer, int pos) {
  if (buffer.charAt(pos) == '/' || buffer.charAt(pos) == '\\') {
    buffer.setCharAt(pos, File.separatorChar);
    return true;
  }
  return false;
}

代码示例来源：origin: log4j/log4j

/**
  * Gets HEADER portion of packet.
  * @param timeStamp number of milliseconds after the standard base time.
  * @return HEADER portion of packet, will be zero-length string if header is false.
  * @since 1.2.15
  */
private String getPacketHeader(final long timeStamp) {
  if (header) {
   StringBuffer buf = new StringBuffer(dateFormat.format(new Date(timeStamp)));
   //  RFC 3164 says leading space, not leading zero on days 1-9
   if (buf.charAt(4) == '0') {
    buf.setCharAt(4, ' ');
   }
   buf.append(getLocalHostname());
   buf.append(' ');
   return buf.toString();
  }
  return "";
}

代码示例来源：origin: log4j/log4j

buffer.setCharAt(i, ' ');

代码示例来源：origin: pentaho/pentaho-kettle

public String stripCR( StringBuffer sbsql ) {
 // DB2 Can't handle \n in SQL Statements...
 if ( !supportsNewLinesInSQL() ) {
  // Remove CR's
  for ( int i = sbsql.length() - 1; i >= 0; i-- ) {
   if ( sbsql.charAt( i ) == '\n' || sbsql.charAt( i ) == '\r' ) {
    sbsql.setCharAt( i, ' ' );
   }
  }
 }
 return sbsql.toString();
}

代码示例来源：origin: org.apache.ant/ant

/**
   * returns the unicode representation of a char without the leading backslash
   * @param ch a character
   * @return unicode representation of a char for property files
   */
  public static StringBuffer EscapeUnicode(char ch) {
    StringBuffer unicodeBuf = new StringBuffer("u0000");
    String s = Integer.toHexString(ch);
    //replace the last 0s by the chars contained in s
    for (int i = 0; i < s.length(); i++) {
      unicodeBuf.setCharAt(unicodeBuf.length()
                 - s.length() + i,
                 s.charAt(i));
    }
    return unicodeBuf;
  }
}

代码示例来源：origin: redisson/redisson

private static String lookupSwitch(CodeIterator iter, int pos) {
  StringBuffer buffer = new StringBuffer("lookupswitch {\n");
  int index = (pos & ~3) + 4;
  // default
  buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n");
  int npairs = iter.s32bitAt(index += 4);
  int end = npairs * 8 + (index += 4);
  for (; index < end; index += 8) {
    int match = iter.s32bitAt(index);
    int target = iter.s32bitAt(index + 4) + pos;
    buffer.append("\t\t").append(match).append(": ").append(target).append("\n");
  }
  buffer.setCharAt(buffer.length() - 1, '}');
  return buffer.toString();
}

代码示例来源：origin: redisson/redisson

private static String tableSwitch(CodeIterator iter, int pos) {
  StringBuffer buffer = new StringBuffer("tableswitch {\n");
  int index = (pos & ~3) + 4;
  // default
  buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n");
  int low = iter.s32bitAt(index += 4);
  int high = iter.s32bitAt(index += 4);
  int end = (high - low + 1) * 4 + (index += 4);
  // Offset table
  for (int key = low; index < end; index += 4, key++) {
    int target = iter.s32bitAt(index) + pos;
    buffer.append("\t\t").append(key).append(": ").append(target).append("\n");
  }
  buffer.setCharAt(buffer.length() - 1, '}');
  return buffer.toString();
}

代码示例来源：origin: plantuml/plantuml

public void set(int x, int y, char c){
  if(x > getWidth() - 1 || y > getHeight() - 1) return;
  StringBuffer row = rows.get(y);
  row.setCharAt(x, c);
}

代码示例来源：origin: org.javassist/javassist

private static String lookupSwitch(CodeIterator iter, int pos) {
  StringBuffer buffer = new StringBuffer("lookupswitch {\n");
  int index = (pos & ~3) + 4;
  // default
  buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n");
  int npairs = iter.s32bitAt(index += 4);
  int end = npairs * 8 + (index += 4);
  for (; index < end; index += 8) {
    int match = iter.s32bitAt(index);
    int target = iter.s32bitAt(index + 4) + pos;
    buffer.append("\t\t").append(match).append(": ").append(target).append("\n");
  }
  buffer.setCharAt(buffer.length() - 1, '}');
  return buffer.toString();
}

代码示例来源：origin: org.javassist/javassist

private static String tableSwitch(CodeIterator iter, int pos) {
  StringBuffer buffer = new StringBuffer("tableswitch {\n");
  int index = (pos & ~3) + 4;
  // default
  buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n");
  int low = iter.s32bitAt(index += 4);
  int high = iter.s32bitAt(index += 4);
  int end = (high - low + 1) * 4 + (index += 4);
  // Offset table
  for (int key = low; index < end; index += 4, key++) {
    int target = iter.s32bitAt(index) + pos;
    buffer.append("\t\t").append(key).append(": ").append(target).append("\n");
  }
  buffer.setCharAt(buffer.length() - 1, '}');
  return buffer.toString();
}

代码示例来源：origin: scouter-project/scouter

private static String lookupSwitch(CodeIterator iter, int pos) {
  StringBuffer buffer = new StringBuffer("lookupswitch {\n");
  int index = (pos & ~3) + 4;
  // default
  buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n");
  int npairs = iter.s32bitAt(index += 4);
  int end = npairs * 8 + (index += 4);
  for (; index < end; index += 8) {
    int match = iter.s32bitAt(index);
    int target = iter.s32bitAt(index + 4) + pos;
    buffer.append("\t\t").append(match).append(": ").append(target).append("\n");
  }
  buffer.setCharAt(buffer.length() - 1, '}');
  return buffer.toString();
}

代码示例来源：origin: scouter-project/scouter

private static String lookupSwitch(CodeIterator iter, int pos) {
  StringBuffer buffer = new StringBuffer("lookupswitch {\n");
  int index = (pos & ~3) + 4;
  // default
  buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n");
  int npairs = iter.s32bitAt(index += 4);
  int end = npairs * 8 + (index += 4);
  for (; index < end; index += 8) {
    int match = iter.s32bitAt(index);
    int target = iter.s32bitAt(index + 4) + pos;
    buffer.append("\t\t").append(match).append(": ").append(target).append("\n");
  }
  buffer.setCharAt(buffer.length() - 1, '}');
  return buffer.toString();
}

代码示例来源：origin: scouter-project/scouter

private static String tableSwitch(CodeIterator iter, int pos) {
  StringBuffer buffer = new StringBuffer("tableswitch {\n");
  int index = (pos & ~3) + 4;
  // default
  buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n");
  int low = iter.s32bitAt(index += 4);
  int high = iter.s32bitAt(index += 4);
  int end = (high - low + 1) * 4 + (index += 4);
  // Offset table
  for (int key = low; index < end; index += 4, key++) {
    int target = iter.s32bitAt(index) + pos;
    buffer.append("\t\t").append(key).append(": ").append(target).append("\n");
  }
  buffer.setCharAt(buffer.length() - 1, '}');
  return buffer.toString();
}

代码示例来源：origin: scouter-project/scouter

private static String tableSwitch(CodeIterator iter, int pos) {
  StringBuffer buffer = new StringBuffer("tableswitch {\n");
  int index = (pos & ~3) + 4;
  // default
  buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n");
  int low = iter.s32bitAt(index += 4);
  int high = iter.s32bitAt(index += 4);
  int end = (high - low + 1) * 4 + (index += 4);
  // Offset table
  for (int key = low; index < end; index += 4, key++) {
    int target = iter.s32bitAt(index) + pos;
    buffer.append("\t\t").append(key).append(": ").append(target).append("\n");
  }
  buffer.setCharAt(buffer.length() - 1, '}');
  return buffer.toString();
}

代码示例来源：origin: log4j/log4j

for (int i = 0; i < sbuf.length(); i++) {
  if (sbuf.charAt(i) >= 0x80) {
    sbuf.setCharAt(i, '?');

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