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

Character.toUpperCase介绍

[英]Returns the upper case equivalent for the specified character if the character is a lower case letter. Otherwise, the specified character is returned unchanged.
[中]如果指定字符是小写字母，则返回该字符的大写等效值。否则，指定的字符将原封不动地返回。

代码示例

代码示例来源：origin: netty/netty

@Override
  public boolean equals(char a, char b) {
    //For motivation, why we need two checks, see comment in String#regionMatches
    return Character.toUpperCase(a) == Character.toUpperCase(b) ||
      Character.toLowerCase(a) == Character.toLowerCase(b);
  }
}

代码示例来源：origin: libgdx/libgdx

/** @param other May be null. */
public boolean equalsIgnoreCase (StringBuilder other) {
  if (this == other) return true;
  if (other == null) return false;
  int length = this.length;
  if (length != other.length) return false;
  char[] chars = this.chars, chars2 = other.chars;
  for (int i = 0; i < length; i++) {
    char c = chars[i];
    char upper = Character.toUpperCase(chars2[i]);
    if (c != upper && c != Character.toLowerCase(upper)) return false;
  }
  return true;
}

代码示例来源：origin: libgdx/libgdx

/** @param other May be null. */
public boolean equalsIgnoreCase (StringBuilder other) {
  if (this == other) return true;
  if (other == null) return false;
  int length = this.length;
  if (length != other.length) return false;
  char[] chars = this.chars, chars2 = other.chars;
  for (int i = 0; i < length; i++) {
    char c = chars[i];
    char upper = Character.toUpperCase(chars2[i]);
    if (c != upper && c != Character.toLowerCase(upper)) return false;
  }
  return true;
}

代码示例来源：origin: redisson/redisson

@Override
  public boolean equals(char a, char b) {
    //For motivation, why we need two checks, see comment in String#regionMatches
    return Character.toUpperCase(a) == Character.toUpperCase(b) ||
      Character.toLowerCase(a) == Character.toLowerCase(b);
  }
}

代码示例来源：origin: apache/incubator-dubbo

public static String generateGetMethodName(String fieldName) {
  return new StringBuffer(16)
      .append("get")
      .append(Character.toUpperCase(fieldName.charAt(0)))
      .append(fieldName.substring(1))
      .toString();
}

代码示例来源：origin: apache/incubator-dubbo

public static String generateSetMethodName(String fieldName) {
  return new StringBuilder(16)
      .append("set")
      .append(Character.toUpperCase(fieldName.charAt(0)))
      .append(fieldName.substring(1))
      .toString();
}

代码示例来源：origin: apache/incubator-dubbo

public static String generateGetMethodName(String fieldName) {
  return new StringBuffer(16)
      .append("get")
      .append(Character.toUpperCase(fieldName.charAt(0)))
      .append(fieldName.substring(1))
      .toString();
}

代码示例来源：origin: apache/incubator-dubbo

public static String generateSetMethodName(String fieldName) {
  return new StringBuilder(16)
      .append("set")
      .append(Character.toUpperCase(fieldName.charAt(0)))
      .append(fieldName.substring(1))
      .toString();
}

代码示例来源：origin: jenkinsci/jenkins

/**
 * Converts "abc" to "Abc".
 */
public static String capitalize(String s) {
  if(s==null || s.length()==0) return s;
  return Character.toUpperCase(s.charAt(0))+s.substring(1);
}

代码示例来源：origin: libgdx/libgdx

/** @param other May be null. */
  public boolean equalsIgnoreCase (String other) {
    if (other == null) return false;
    int length = this.length;
    if (length != other.length()) return false;
    char[] chars = this.chars;
    for (int i = 0; i < length; i++) {
      char c = chars[i];
      char upper = Character.toUpperCase(other.charAt(i));
      if (c != upper && c != Character.toLowerCase(upper)) return false;
    }
    return true;
  }
}

代码示例来源：origin: libgdx/libgdx

/** @param other May be null. */
  public boolean equalsIgnoreCase (String other) {
    if (other == null) return false;
    int length = this.length;
    if (length != other.length()) return false;
    char[] chars = this.chars;
    for (int i = 0; i < length; i++) {
      char c = chars[i];
      char upper = Character.toUpperCase(other.charAt(i));
      if (c != upper && c != Character.toLowerCase(upper)) return false;
    }
    return true;
  }
}

代码示例来源：origin: google/guava

@Override
protected char[] escape(int cp) {
 return ('a' <= cp && cp <= 'z') ? new char[] {Character.toUpperCase((char) cp)} : null;
}
// Inefficient implementation that defines all letters as escapable.

代码示例来源：origin: greenrobot/greenDAO

public static String capFirst(String string) {
  return Character.toUpperCase(string.charAt(0)) + (string.length() > 1 ? string.substring(1) : "");
}

代码示例来源：origin: iBotPeaches/Apktool

private String toUpper(char[] character) {
  StringBuilder sb = new StringBuilder();
  for (char ch: character) {
    sb.append(Character.toUpperCase(ch));
  }
  return sb.toString();
}

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

private static String changeFirstCharacterCase(String str, boolean capitalize) {
  if (!hasLength(str)) {
    return str;
  }
  char baseChar = str.charAt(0);
  char updatedChar;
  if (capitalize) {
    updatedChar = Character.toUpperCase(baseChar);
  }
  else {
    updatedChar = Character.toLowerCase(baseChar);
  }
  if (baseChar == updatedChar) {
    return str;
  }
  char[] chars = str.toCharArray();
  chars[0] = updatedChar;
  return new String(chars, 0, chars.length);
}

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: shuzheng/zheng

/**
 * 首字母转大写
 * @param s
 * @return
 */
public static String toUpperCaseFirstOne(String s) {
  if (StringUtils.isBlank(s)) {
    return s;
  }
  if (Character.isUpperCase(s.charAt(0))) {
    return s;
  } else {
    return (new StringBuffer()).append(Character.toUpperCase(s.charAt(0))).append(s.substring(1)).toString();
  }
}

代码示例来源：origin: prestodb/presto

@Override
public int LA(int i)
{
  int result = stream.LA(i);
  switch (result) {
    case 0:
    case IntStream.EOF:
      return result;
    default:
      return Character.toUpperCase(result);
  }
}

代码示例来源：origin: jenkinsci/jenkins

/**
   * Generates random salt.
   */
  private String generateSalt() {
    StringBuilder buf = new StringBuilder();
    SecureRandom sr = new SecureRandom();
    for( int i=0; i<6; i++ ) {// log2(52^6)=34.20... so, this is about 32bit strong.
      boolean upper = sr.nextBoolean();
      char ch = (char)(sr.nextInt(26) + 'a');
      if(upper)   ch=Character.toUpperCase(ch);
      buf.append(ch);
    }
    return buf.toString();
  }
};

代码示例来源：origin: redisson/redisson

/**
 * An element matcher that matches any setter for the given property. When given an empty string, any setter named {@code set}
 * is matched despite that such a setter is not fulfilling the Java bean naming conventions.
 *
 * @param property The property to match a setter for.
 * @param <T>      The type of the matched object.
 * @return A matcher that matches any setter method for the supplied property.
 */
public static <T extends MethodDescription> ElementMatcher.Junction<T> isSetter(String property) {
  return isSetter().and(property.length() == 0
      ? named("set")
      : named("set" + Character.toUpperCase(property.charAt(0)) + property.substring(1)));
}