You could adjust the tabs via code – here’s an excerpt from my application, but you could also assign themes instead of the background image directly. (I haven’t used a way via xml attributes yet, not sure if that’s available as well somehow). private void initTabs() { tabs = (TabHost) findViewById(R.id.tabhost); tabs.setup(); tabs.setBackgroundResource(R.drawable.bg_midgray); TabHost.TabSpec spec; … Read more
There is no difference. What your professor prefers is called Yoda conditions also see “Yoda Conditions”, “Pokémon Exception Handling” and other programming classics. It is supposed to prevent the usage of assignment(=) by mistake over equality(==) in a comparison, but modern compilers should warn about this now, so this type of defensive programming should not … Read more
With getComputedStyle, you can get the cssText property which will fetch the entire computed style in a CSS string: var completeStyle = window.getComputedStyle(element1, null).cssText; element2.style.cssText = completeStyle; Unfortunately, getComputedStyle isn’t supported by Internet Explorer, which uses currentStyle instead. Doubly unfortunate is the fact that currentStyle returns null for cssText, so the same method cannot be … Read more
The only downside(*) is that it hides the fact that foo is a struct, and not an alias for some builtin type. Note(*): it’s matter of taste whether this is a downside for you. It’s good for total opaqueness (see the first comment below). To see why some people think this is a downside, check … Read more
I would suggest that you do: if (status) { //positive work } else { // negative work } The == tests, while obviously redundant, also run the risk of a single = typo which would result in an assignment.
The C# specification (section 10.6) states that overloaded members may not differ by only return type and as per http://msdn.microsoft.com/en-us/library/ms229029.aspx As per your question regarding creating parameters simply to support differing return types? I personally believe that is a terrible solution to the problem. Code maintenance will become difficult and unused parameters are a definite … Read more
This does not work due to click-jacking vulnerability. Example: <a href=”http://example.com/attack.html” style=”display: block; z-index: 100000; opacity: 0.5; position: fixed; top: 0px; left: 0; width: 1000000px; height: 100000px; background-color: red;”> </a> Found at: http://www.bioinformatics.org/phplabware/forum/viewtopic.php?id=164 The code would be perfectly validated but it may cause serious damage. So – rule of thumb use very strict white list … Read more
If they have strong connections, then I’d put them in an enum: public enum Error { ERROR_1(“-1”, “foo went wrong”), ERROR_2(“-2”, “bar went wrong”); private final String id; private final String message; Error(String id, String message) { this.id=id; this.message=message; } public String getId() { return id; } public String getMessage() { return message; } } … Read more
Your arguments are good; this is one of the more expressive areas of the Java language, and the “” + idiom seems well entrenched, as you discovered. See String concatenation in the JLS. An expression like “” + c1 + c2 is equivalent to new StringBuffer().append(new Character(c1).toString()) .append(new Character(c2).toString()).toString() except that all of the intermediate … Read more
Named functions There is some serious misuse of terminology in the question and answers on this page. There is nothing about whether or not a function is inline (a function expression) that says you cannot name it. This is using a function expression: setTimeout(function doSomethingLater() { alert(‘In a named function.’); }, 5); and this is … Read more