Java Character toTitleCase() 方法

2024年11月6日 | 阅读 4 分钟

Character 类的 toTitleCase(char ch) 方法使用 Unicode 数据文件中提供的映射信息，将给定的字符参数转换为标题形式。应注意，对于某些字符，Character.isTitleCase(Character.TitleCase(ch)) 可能不总是返回 true。

可以看到，如果一个字符没有明确的标题大小写映射，并且根据 Unicode 数据文件它不是一个标题大小写字符，那么将返回其大写映射。另一方面，如果字符参数已经是标题大小写字符，则将返回相同的值。

语法

参数

ch：需要转换的字符。

返回值

toTitleCase(char ch) 方法返回给定字符的标题大小写形式。否则，该方法返回字符本身。

示例 1

public class JavaCharacterToTitleCaseExample1 {
    public static void main(String[] args) {
      // Create four char primitives ch1, ch2, ch3 and ch4.
      char ch1, ch2, ch3, ch4;
      // Assign  the values to ch1 and ch2.
      ch1 = 'b';
      ch2 = 'm';
      // Assign the titlecase of ch1 and ch2 to ch3 and ch4 respectively.
      ch3 = Character.toTitleCase(ch1);
      ch4 = Character.toTitleCase(ch2);
      String str1 = "The titlecase of character '" + ch1 + "' is given as: " + ch3;
      String str2 = "The titlecase of character '" + ch2 + "' is given as: " + ch4;
      // Print the values of ch3 and ch4.
      System.out.println( str1 );
      System.out.println( str2 );
   }
}

输出

The titlecase of character 'b' is given as: B
The titlecase of character 'm' is given as: M

示例 2

public class JavaCharacterToTitleCaseExample2 {
    public static void main(String[] args) {
      // Create four char primitives ch1, ch2, ch3 and ch4.
      char ch1, ch2, ch3, ch4;
      // Assign  the values to ch1 and ch2.
      ch1 = ')';
      ch2 = 'G';
      // Assign the titlecase of ch1 and ch2 to ch3 and ch4 respectively.
      ch3 = Character.toTitleCase(ch1);
      ch4 = Character.toTitleCase(ch2);
      String str1 = "The titlecase of character '" + ch1 + "' is given as: " + ch3;
      String str2 = "The titlecase of character '" + ch2 + "' is given as: " + ch4;
      // Print the values of ch3 and ch4.
      System.out.println( str1 );
      System.out.println( str2 );
   }
}

输出

The titlecase of character ')' is given as: )
The titlecase of character 'G' is given as: G

Java Character toTitleCase()方法

Character 类的 toTitleCase(int codePoint) 方法使用 Unicode 数据文件中提供的映射信息，将给定的字符（Unicode 代码点）参数转换为标题形式。

应注意，对于某些字符，Character.isTitleCase(Character.TitleCase(codePoint)) 可能不总是返回 true。

语法

参数

codePoint：需要测试的字符的 codePoint。

返回值

toTitleCase(int codePoint) 方法返回给定字符（Unicode 代码点）的标题大小写形式。否则，该方法返回字符本身。

示例 1

public class JavaCharacterToTitleCaseExample_1 { 
   public static void main(String[] args) {
      // Create four int primitives.
      int cp1, cp2, cp3, cp4;
      // Assign the values to cp1 and cp2.
      cp1 = 0x0099; 
      cp2 = 0x0080;
      // Assign the titlecase of cp1 and cp2 to cp3 and cp4 respectively.
      cp3 = Character.toTitleCase(cp1);
      cp4 = Character.toTitleCase(cp2);
      String str1 = "The titlecase for the character '" + cp1 + "' isgiven as: " + cp3;
      String str2 = "The titlecase for the character '" + cp2 + "' isgiven as: " + cp4;
      // Print the values of cp3 and cp4.
      System.out.println( str1 );
      System.out.println( str2 );
   }
}

输出

The titlecase for the character '153' isgiven as: 153
The titlecase for the character '128' isgiven as: 128

示例 2

public class JavaCharacterToTitleCaseExample_2 { 
   public static void main(String[] args) {
      // Create four int primitives.
      int cp1, cp2, cp3, cp4;
      // Assign the values to cp1 and cp2.
      cp1 = 273; 
      cp2 = 156;
      // Assign the titlecase of cp1 and cp2 to cp3 and cp4 respectively.
      cp3 = Character.toTitleCase(cp1);
      cp4 = Character.toTitleCase(cp2);
      String str1 = "The titlecase for the character '" + cp1 + "' isgiven as: " + cp3;
      String str2 = "The titlecase for the character '" + cp2 + "' isgiven as: " + cp4;
      // Print the values of cp3 and cp4.
      System.out.println( str1 );
      System.out.println( str2 );
   }
}

输出

The titlecase for the character '273' isgiven as: 272
The titlecase for the character '156' isgiven as: 156

下一个主题Java-character-touppercase-method

Java Character toTitleCase() 方法

语法

参数

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示例 1

示例 2

Java Character toTitleCase()方法

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返回值

示例 1

示例 2

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Java Character toTitleCase() 方法

语法

参数

返回值

示例 1

示例 2

Java Character toTitleCase()方法

语法

参数

返回值

示例 1

示例 2

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