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RAII and smart pointers in C++
...econd problem is what if an exception is thrown before we close the file?
Java solves the second problem using a finally clause:
try {
File file = new File("/path/to/file");
// Do stuff with file
} finally {
file.close();
}
or since Java 7, a try-with-resource statement:
try (File f...
What is the difference between Type and Class?
...no inherent difference between type and class. Eddie's example is very C++/Java dependent. It's not at all THE definition.
– Robert Gould
Jan 22 '09 at 7:16
...
How to set the font style to bold, italic and underlined in an Android TextView?
...out_height="fill_parent"
android:text="@string/register" />
or In JAVA,
TextView textView = new TextView(this);
textView.setText(R.string.register);
Sometimes the above approach will not be helpful when you might have to use Dynamic Text. So in that case SpannableString comes into actio...
IntelliJ IDEA generating serialVersionUID
...
i have a lot of exceptions there.. like java.lang.NoClassDefFoundError: org/intellij/lang/annotations/MagicConstant;
– Kirill Bazarov
Oct 16 '12 at 10:58
...
What's the difference between a Future and a Promise?
...ussion, Promise has finally been called CompletableFuture for inclusion in Java 8, and its javadoc explains:
A Future that may be explicitly completed (setting its value and status), and may be used as a CompletionStage, supporting dependent functions and actions that trigger upon its completion...
JSF backing bean structure (best practices)
... "model" -- think DATA. A JSF model-bean should be a POJO that follows the JavaBean design pattern with getters/setters encapsulating properties. The most common use case for a model bean is to be a database entity, or to simply represent a set of rows from the result set of a database query.
Backin...
Android - implementing startForeground for a service?
...rstand/greyparrot/blob/master/src/com/xiong/richard/greyparrot/Mp3Recorder.java
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How to test that no exception is thrown?
...
Java 8 makes this a lot easier, and Kotlin/Scala doubly so.
We can write a little utility class
class MyAssertions{
public static void assertDoesNotThrow(FailingRunnable action){
try{
action.run()
}
catc...
Can inner classes access private variables?
...ner can access the member variable var of an object of type Outer.
Unlike Java though, there is no correlation between an object of type Outer::Inner and an object of the parent class. You have to make the parent child relationship manually.
#include <string>
#include <iostream>
class...
Get JSF managed bean by name in any Servlet related class
...even though the static utility method findBean() is defined inside a plain Java class. How is it available there in a plain Java class which is not managed by JSF?
– Tiny
Jul 10 '15 at 1:07
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