字符類isLowerCase()方法 (Character class isLowerCase() method)

• isLowerCase() method is available in java.lang package.

  isLowerCase()方法在java.lang包中可用。

• isLowerCase() method is used to check whether the given char value is lowercase or not.

  isLowerCase()方法用于檢查給定的char值是否為小寫。

• isLowerCase() method does not throw an exception at the time of checking the given char value is lowercase or not.

  在檢查給定的char值是否為小寫時(shí)， isLowerCase()方法不會(huì)引發(fā)異常。

Syntax:

句法：

public boolean isLowerCase (Char value);

Parameter(s):

參數(shù)：

• Char value – represents the char value to be checked.

  字符值 –表示要檢查的字符值。

Return value:

返回值：

The return type of this method is boolean, it returns a boolean value based on the following cases,

此方法的返回類型為boolean ，它基于以下情況返回布爾值：

• It returns true, if the given char value is lowercase.

  如果給定的char值為小寫，則返回true 。

• It returns false, if the given char value is not in lowercase.

  如果給定的char值不是小寫，則返回false 。

Example:

例：

// Java program to demonstrate the example // of boolean isLowerCase (Char value) method of Character classpublic class IsLowerCaseOfCharacterClass {public static void main(String[] args) {// It returns false because the passing character is // not in LowerCaseboolean result1 = Character.isLowerCase('P');// It returns true because the passing character is // in LowerCase boolean result2 = Character.isLowerCase('p');// Display values of result1 , result2System.out.println("Character.isLowerCase('P'): " + result1);System.out.println("Character.isLowerCase('p'): " + result2);} }

Output

輸出量

Character.isLowerCase('P'): false Character.isLowerCase('p'): true

翻譯自: https://www.includehelp.com/java/character-class-islowercase-method-with-example.aspx

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