2. 使用 Java 实现字符串转为大写 Java 提供了内置的方法来将字符串转换为大写字母。我们可以使用String类中的toUpperCase()方法。下面是一个简单的示例,展示如何使用这个方法: publicclassStringToUpperExample{publicstaticvoidmain(String[]args){StringoriginalString="hello world!";StringupperCaseString=originalString....
如果首字符大写,返回true,否则返回false private boolean isUppercase(String str) { // TODO Auto-generated method stub char c = str.charAt(0); return Character.isUpperCase(c); } 当然,还可以用 char c = str.charAt(i); if (!Character.isLowerCase(c)) 或者用 char c = s.charAt(0); if (c ...
如果首字符大写,返回true,否则返回false private boolean isUppercase(String str) { // TODO Auto-generated method stub char c = str.charAt(0); return Character.isUpperCase(c); } 当然,还可以用 char c = str.charAt(i); if (!Character.isLowerCase(c)) 或者用 char c = s.charAt(0); if (c ...
This function returns the value of inputString after translating every character to its uppercase correspondent. Example: xpath20:upper-case('abCd0') returns 'ABCD0' Signature: xpath20:upper-case(inputString as string) Arguments: inputString: The string of data that is in uppercase. Pr...
public boolean storesUpperCaseQuotedIdentifiers() 傳回值 如果以大寫字母的形式來儲存識別碼,則為 true; 否則為 false。 例外狀況 SQLServerException 備註 這個storesUpperCaseQuotedIdentifiers 方法是由 java.sql.DatabaseMetaData 介面中的 storesUpperCaseQuotedIdentifiers 方法所指定。 另請參...
Java.Lang Assembly: Mono.Android.dll General category "Lu" in the Unicode specification. C# [Android.Runtime.Register("UPPERCASE_LETTER")]publicconstsbyteUppercaseLetter =1; Field Value Value = 1 SByte Attributes RegisterAttribute Remarks
HexFormat.WithUpperCase 方法 參考 意見反應 定義 命名空間: Java.Util 組件: Mono.Android.dll 傳回這個 HexFormat 的複本,以使用大寫十六進位字元。 C# 複製 [Android.Runtime.Register("withUpperCase", "()Ljava/util/HexFormat;", "", ApiSince=34)] public Java.Util.HexFormat? WithUpperCase...
Hi all! Trying to write a small code to check if a string is all upper or lower case letters, such as "JAVA" or "hello", which should return true. If has mixed upper o
Function BasicsThese text functions change the case of letters in strings. They each take one text argument and return the modified string. They don't affect numbers or special characters in the text. FunctionDescriptionSyntax UPPER Converts text to all uppercase =UPPER(text) LOWER Converts ...
通过Character.toUpperCase()方法把小写字母变为大写，通过Character.toLowerCase()方法把大写字母变为小写...