How does the ternary operator work?

Question

Please demonstrate how the ternary operator works with a regular if/else block. Example:

Boolean isValueBig = value > 100 ? true : false;

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Exact Duplicate: How do I use the ternary operator?

Answer 1

Boolean isValueBig = ( value > 100  ) ? true : false;


Boolean isValueBig;

if(  value > 100 ) { 
      isValueBig = true;
} else { 
     isValueBig = false;
}

Answer 2

The difference between the ternary operation and if/else is that the ternary expression is a statement that evaluates to a value, while if/else is not.

To use your example, changing from the use of a ternary expression to if/else you could use this statement:

Boolean isValueBig = null;
if(value > 100)
{ 
    isValueBig = true 
}
else
{
    isValueBig = false;
}

In this case, though, your statement is equivalent to this:

Boolean isValueBig = (value > 100);