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What is null in Java?

...s another usage example, this time from java.io.BufferedReader: public String readLine() throws IOException Returns: A String containing the contents of the line, not including any line-termination characters, or null if the end of the stream has been reached. So here, readLine() would re...
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Get value when selected ng-option changes

... as Artyom said you need to use ngChange and pass ngModel object as argument to your ngChange function Example: <div ng-app="App" > <div ng-controller="ctrl"> <select ng-model="blisterPackTemplateSelected" ng-change="changedValue(blisterPackT...
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How to send a GET request from PHP?

... This is correct, unless you need to use query string parameters. – Raptor Jun 10 '11 at 8:04 2 ...
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Case statement with multiple values in each 'when' block

...on happens: When I write this: when "toyota", "lexus", I get: unexpected tSTRING_BEG, expecting keyword_do or '{' or '(' (SyntaxError). However, when I write this: when "toyota","lexus", it works. The only difference is a space after comma. – Furkan Ayhan N...
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How to return a result (startActivityForResult) from a TabHost Activity?

...ode == RESULT_OK) { Bundle res = data.getExtras(); String result = res.getString("param_result"); Log.d("FIRST", "result:"+result); } break; } } private void finishWithResult() { Bundle conData = new Bundle(); conData.putString("param_...
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How can I get enum possible values in a MySQL database?

... You can get the values by querying it like this: SELECT SUBSTRING(COLUMN_TYPE,5) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA='databasename' AND TABLE_NAME='tablename' AND COLUMN_NAME='columnname' From there you'll need to convert it into an array: eval that direct...
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Android - Using Custom Font

...blic class CustomFontTextView extends TextView { private static final String sScheme = "http://schemas.android.com/apk/res-auto"; private static final String sAttribute = "customFont"; static enum CustomFont { ROBOTO_THIN("fonts/Roboto-Thin.ttf"), ROBOTO_LIG...
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Convert a Scala list to a tuple?

...cala> val hlist = "z" :: 6 :: "b" :: true :: HNil hlist: shapeless.::[String,shapeless.::[Int,shapeless.::[String,shapeless.::[Boolean,shapeless.HNil]]]] = z :: 6 :: b :: true :: HNil scala> val tup = hlist.tupled tup: (String, Int, String, Boolean) = (z,6,b,true) scala> tup res0: (St...
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How to tell Jackson to ignore a field during serialization if its value is null?

...ion(Include.NON_NULL); or: @JsonInclude(Include.NON_NULL) class Foo { String bar; } Alternatively, you could use @JsonInclude in a getter so that the attribute would be shown if the value is not null. A more complete example is available in my answer to How to prevent null values inside a Ma...
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What is the difference between loose coupling and tight coupling in the object oriented paradigm?

...tabase) { this.database = database; } public void Add(string CustomerName) { database.AddRow("Customer", CustomerName); } } class Database { public void AddRow(string Table, string Value) { } } Example of loose coupling: class CustomerRepository {...