Best/MostEfficient way to check if at least one input is entered by user
I am trying to take in multiple parameters from a function and im am checking if at least one of the parameters are not null or empty.
right now i am doing something like this.
void foo(String a, String b, String c, String d, ... other strings){
//make sure at least one of the inputs are not null.
if(a!=null || b!=null || c!=null || d!=null ... more strings){
//do something with the string
}
}
so an input can be foo(null, null, null, "hey");
but it cannot be foo(null, null, null, null);
What my question is is there a better开发者_运维知识库 way to do this, rather than keep adding to the if statement. Im blanking out right now.... Thanks
Use varags
public static boolean atLeastOneEmpty(String firstString, String... strings){
if(firstString == null || firstString.isEmpty())
return true;
for(String str : strings){
if(str == null || str.isEmpty())
return true;
}
return false;
}
Returns true if at least one string is empty
It is a bit late, but from Apache Commons Lange 3.11 you can use the method ObjectUtils.anyNotNull()
.
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