StringBuilder隐藏元音:
String bienvenue_intro = " Welcome! Java First Semester: 455, java street: City (State): Country: 575757 ";
StringBuilder sb = new StringBuilder(bienvenue_intro);
String[] introduction = bienvenue_intro.split(":");
for (int i = 0; i < bienvenue_intro.length(); i++) {
char c = bienvenue_intro.charAt(i);
if ((c == 'A') || (c == 'a') ||
(c == 'E') || (c == 'e') ||
(c == 'I') || (c == 'i') ||
(c == 'O') || (c == 'o') ||
(c == 'U') || (c == 'u')) …当他访问他之前选择的产品页面时,我试图向用户显示2个随机产品.有点像一个意见箱.
要做到这一点,我正在使用 <c:forEach var="product" items="${categoryProducts}" begin="0" end="1" step="1" varStatus="iter">
它在显示前两个产品时工作正常,但它非常有限,因为它总是会显示相同的两个产品(第一个和第二个).
如何让标签得到提升并让它变得更聪明？我希望程序每次都显示2种不同的产品... first-second third-fourth等等...