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boolean operations - How to use 'or' in Java? - Stack Overflow
The || operator can only be used, in Java, where a boolean (true or false) expression is expected, such as in an if statement like the above. So pretty much in an if or a conditional operator (that ?...: thing, sometimes called the ternary operator).

What does the arrow operator, '->', do in Java? - Stack Overflow
That's part of the syntax of the new lambda expressions, to be introduced in Java 8. There are a couple of online tutorials to get the hang of it, here's a link to one. Basically, the -> separates the parameters (left-side) from the implementation (right side). The general syntax for using lambda expressions is (Parameters) -> { Body } where the -> separates parameters and lambda expression ...

How to make a new List in Java - Stack Overflow
We create a Set as: Set myset = new HashSet() How do we create a List in Java?

java - Extending from two classes - Stack Overflow
Yea, as everyone else wrote, you cannot do multiple inheritance in Java. If you have two classes from which you'd like to use code, you'd typically just subclass one (say class A).

Setting JAVA_HOME - Stack Overflow
JAVA_HOME and PATH are different, I didn't say point JAVA_HOME to the jre/bin directory. Try making sure that the PATH environment variable includes the jre/bin directory. For example, type java from the command prompt, does that work?

How to Fix a (javascript error occurred in the main process Error ...
Hi, I am Dave, I will help you with this. Open File Explorer. On the top menu, go to View - Show and enable 'Hidden Files' temporarily. Then navigate to this folder: C:\Users\Lenovo\AppData\Local\Programs\Highlight Please provide a screenshot of the contents of that folder.

java - What is the difference between JDK and JRE? - Stack Overflow
The JRE is the Java Runtime Environment. It is a package of everything necessary to run a compiled Java program, including the Java Virtual Machine (JVM), the Java Class Library, the java command, and other infrastructure. However, it cannot be used to create new programs. The JDK is the Java Development Kit, the full-featured SDK for Java.

Need to get current timestamp in Java - Stack Overflow
java.time The accepted answer uses the legacy API (java.util Date-Time API and their formatting API, SimpleDateFormat) which was the right thing to do at the time of writing that answer. However, Java-8 brought the modern Date-Time API which supplanted the outdated and error-prone legacy date-time API and their formatting API.

java - Mockito : how to verify method was called on an object created ...
I am new to Mockito. Given the class below, how can I use Mockito to verify that someMethod was invoked exactly once after foo was invoked? public class Foo { public void foo(){ Bar b...

Java: how to initialize String []? - Stack Overflow
You can always write it like this String[] errorSoon = {"Hello","World"}; For (int x=0;x

 

 

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