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Appending an element to the end of a list in Scala

...he ListBuffer converted back (pretty much like String and StringBuilder in Java), but that's just a guess. – Landei Aug 9 '13 at 9:27 ...
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How to implement the Android ActionBar back button?

... I got the error: Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference – Jones Mar 15 at 21:12 ...
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Declaring a custom android UI element using XML

...want a complete example, look at the android label view sample. LabelView.java TypedArray a=context.obtainStyledAttributes(attrs, R.styleable.LabelView); CharSequences=a.getString(R.styleable.LabelView_text); attrs.xml <declare-styleable name="LabelView"> <attr name="text"format=...
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Difference between Activity Context and Application Context

... I got a 'java.lang.reflect.InvocationTargetException' when using getApplicationContext, interestingly enough, when I changed to this, it did not crash and work as expected....so if they are both instances of Context, why does one not ...
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How to get a Fragment to remove itself, i.e. its equivalent of finish()?

... I have tried the above procedure but it is giving this error "java-lang-illegalstateexception-can-not-perform-this-action-after-onsaveinstance". So where exactly i have to remove the fragment – KK_07k11A0585 Jul 15 '13 at 14:36 ...
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What is the difference between :focus and :active?

...put focus :hover Adds a style to an element when you mouse over it :lang Adds a style to an element with a specific lang attribute :link Adds a style to an unvisited link :visited Adds a style to a visited link Source: CSS Pseudo-classes ...
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When to use setAttribute vs .attribute= in JavaScript?

...e || '' className: // Special map to attributes.class.nodeValue || '' lang: // Special map to attributes.lang.nodeValue || '' } So you can change the dir attributes 6 ways: // 1. Replace the node with setNamedItem const newAttribute = document.createAttribute('dir'); newAttribute.nodeVa...
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Multi flavor app based on multi flavor library in Android Gradle

... After doing same stuff in My application, Error:java.lang.RuntimeException: Error: more than one library with package name , occoured – Chetan Joshi May 31 '17 at 7:30 ...
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Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...lib32 ORACLE_BASE=/grid/orabase #ORA_NLS10=$ORACLE_HOME/nls/data NLS_LANG="Simplified Chinese"_China.ZHS16GBK 使配置生效 source /home/grid/.bash_profile 2号节点: GRID_HOME=/grid/app/11.2.0/grid ORACLE_HOME=/grid/app/11.2.0/grid PATH=$GRID_HOME/bin:$GRID_HOME/OPatch:/sbin...
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difference between foldLeft and reduceLeft in Scala

...eft will error if applied to an empty container with the following error. java.lang.UnsupportedOperationException: empty.reduceLeft Reworking the code to use myList foldLeft(List[String]()) {(a,b) => a+b} is one potential option. Another is to use the reduceLeftOption variant which return...