I am having trouble understanding the following expression return and subsequent notation.
private String fm(float value){
return(value<=0)??"+value:"+"+value;
}
Is it a kind of if sentence?I think so, but I can't search the book with this code because there's no explanation.
? I don't know much about it, so I would appreciate it if you could explain it to me.
It is called a trinomial operator.
(value<=0)??"+value:"+"+value in one lump,
If (value<=0) is a conditional statement, and if it is true, it returns ? and : (where "+value), and if it is false, : or later (where +value).
The Java specification is "conditional operator" in 15.25.Conditional Operator?:.In Japanese, is it conditional operator?The term triplet operator may be better.
Equivalent to the following if statement:
private String fm(float value){
if(value<=0){
return""+value;
} else{
return"+"+value;
}
}
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