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How to make input type= file Should accept only pdf and xls
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You could do so by using the attribute accept and adding allowed mime-types to it. But not all browsers do respect that attribute and it could easily be removed via some code inspector. So in either case you need to check the file type on the server side (your second que...
Safely override C++ virtual functions
I have a base class with a virtual function and I want to override that function in a derived class. Is there some way to make the compiler check if the function I declared in the derived class actually overrides a function in the base class? I would like to add some macro or something that ensures ...
What are “connecting characters” in Java identifiers?
I am reading for SCJP and I have a question regarding this line:
7 Answers
7
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Does a method's signature in Java include its return type?
... of a method declaration comprise the method signature—the method's name and the parameter types.
Since the question was edited to include this example:
public class Foo {
public int myMethod(int param) {}
public char myMethod(int param) {}
}
No, the compiler won't know the differe...
How to Create a circular progressbar in Android which rotates on it?
... creating a layer-list, I separated it into two files. One for ProgressBar and one for its background.
This is the ProgressDrawable file (@drawable folder): circular_progress_bar.xml
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
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Programmatically retrieve memory usage on iPhone
... not interested in those, only to know if it's possible to write some code and get the amount of bytes being used and report it via NSLog.
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Comparing strings by their alphabetical order
... edited Sep 13 '16 at 13:27
Randy
7,85944 gold badges3333 silver badges5151 bronze badges
answered Jun 1 '11 at 15:18
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How can I get LINQ to return the object which has the max value for a given property? [duplicate]
...tID { get; set; }
public int ID { get; set; }
}
Rearrange the list and get the same result
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Easy idiomatic way to define Ordering for a simple case class
I have a list of simple scala case class instances and I want to print them in predictable, lexicographical order using list.sorted , but receive "No implicit Ordering defined for ...".
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Does Java support default parameter values?
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No, the structure you found is how Java handles it (that is, with overloading instead of default parameters).
For constructors, See Effective Java: Programming Language Guide's Item 1 tip (Consider static factory methods instead of constructors) if the overloading ...