三元运算符返回值 - Java / Android [英] Ternary operator to return value- Java/Android
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问题描述
刚刚从php切换到Java
我遇到以下问题
我想重写
if(usrname.equals(username)&&(passwd.equals(password))){
return true;
}
else {
return false;
$ / code>
as
(usrname.equals(username)&& passwd.equals(password))?返回true:返回false;
不工作(语法错误)
但是,
int a = 1;
int b = 2;
int minVal = a< b? a:b;
正在工作
为什么三元运算符在依据某些条件返回值时行为不正确
编辑
return(usrname.equals(username)&& passwd.equals(password));如果它返回布尔值,
可能是解决方案。
< (usrname.equals(username)&& passwd.equals(password))?可以说我需要
返回member:返回guest;
解决方案
您可以做
return(usrname.equals(username)&& passwd.equals(password))?真假;
true
和 false
可以被你想要的任何返回值替换。如果它只是布尔值,那么你可以完全避免使用三元运算符。只要做
return(usrname.equals(username)&& passwd.equals(password));
Just switched to Java from php
I encountered following issue
I want to rewrite
if(usrname.equals(username) && (passwd.equals(password))){
return true;
}
else{
return false;
}
as
(usrname.equals(username) && passwd.equals(password) )? return true : return false;
it is not working(syntax error) however,
int a=1;
int b=2;
int minVal = a < b ? a : b;
is working
Why ternary operator are not behaving correctly while returning value depending on some condition
EDIT
return (usrname.equals(username) && passwd.equals(password));
could be solution if it return boolean .
lets say i need
(usrname.equals(username) && passwd.equals(password) )? return "member": return "guest";
解决方案
You can do
return (usrname.equals(username) && passwd.equals(password) )? true : false;
true
and false
can be replaced by any return value you want. If it is just boolean then you can avoid ternary operator altogether. Just do
return (usrname.equals(username) && passwd.equals(password));
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