如果您选择使用简单的位运算执行大小写转换,则您编写的方法会比Java的方法稍微快一些,因为Java的方法有更复杂的逻辑来支持Unicode字符而不仅仅是ASCII字符集。 如果您查看String.toLowerCase(),您会注意到其中有很多逻辑,因此,如果您正在处理大量仅限于ASCII字符的软件,并且没有其他字符,那么使用更直接的方法可能会有...
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。
import java.lang.*; public class StringDemo { public static void main(String[] args) { // converts all upper case letters in to lower case letters String str1 = "SELF LEARNING CENTER"; System.out.println("string value = " + str1.toLowerCase()); str1 = "TUTORIALS POINT"; System....
publicclassCharUpperLowerCase{publicstaticvoidmain(String[]args){charchar1,char2;char1='a';char2='B';charchar1UpperCase=Character.toUpperCase(char1);charchar2LowerCase=Character.toLowerCase(char2);System.out.println(char1UpperCase);System.out.println(char2LowerCase);}} ...
// Uppercase to lowercase conversion without using // any library function in Java public class Main { static String UpperToLower(String s) { String result = ""; char ch = ' '; for (int i = 0; i < s.length(); i++) { //check valid alphabet and it is in Uppe...
C and C++ for Java Programmers - November 5, 2011 A Gentle Introduction to C++ IO Streams - October 10, 2011 Similar Threads Counting uppercase and lowercase letters in a text By Tintu in forum C Programming Replies: 2 Last Post: 02-06-2008, 10:15 PM how to detect a lowercase or...
We know that theStringclass offers us two methods:toUpperCase()andtoLowerCase().If a string’s (s) characters are in uppercase, then the string (s) must equal the result ofs.toUpperCase().Therefore, following this idea, let’s create two check methods, one for uppercase check and the...
* uppercase to lowercase in Java. We can use toUpperCase() to convert any String * to upper case in Java and toLowerCase() method of String class to convert any * String to lower case in Java. * * @author http://java67.blogspot.com ...
《How to convert a string to lower case in Bash?》 就是${parameter,,pattern},${parameter^^pattern}表达式,表达不会改变原来变量的值 代码语言:javascript 代码运行次数:0 #! /bin/bash# 注意:脚本第一行一定要注明脚本解释器是bash.不能是sh,或dash ...
In this chapter you will learn: Is Character a upper/lower Case The following code usesCharacter.isUpperCasemethod to tell is a char a uppercase char publicclassMain {publicstaticvoidmain(String[] args) {charsymbol ='A';/*fromjava2s.com*/if(Character.isUpperCase(symbol)) { System.out.print...