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Validating empty string

 
Greenhorn
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i wrote if (email==""){
System.out.println("error")
}
but it does not show this is i leave emai as empty???
 
ranger
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You should always compare Strings using the equals method. == will not always return true.

Mark
 
High Plains Drifter
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The == operator here tests whether "" and email point are in the same memory location. Even if the variable email did in fact contain an empty string, the == doesn't know that's what you mean. The equals() method in the String class is a test for what's in the String, rather than where the thing is located.
 
Ranch Hand
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Comparing Strings was difficult for me as well. I think this is what you are looking for.



[ September 13, 2005: Message edited by: Stephen Boston ]
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