Category: Java

Readers ask: How To Use Set In Java?

What is set in Java? A Set is a Collection that cannot contain duplicate elements. It models the mathematical set abstraction. Two Set instances are equal if they contain the same elements. The Java platform contains three general-purpose Set implementations: HashSet, TreeSet, and LinkedHashSet. How do sets work in Java? Set achieves the uniqueness in…

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Quick Answer: What Is Api Java?

What is API in Java with example? An API can be described as a way to enable computers to possess a common interface, to allow them to communicate with each other. Java Application Programming Interface ( API ) is the area of Java development kit (JDK). An API includes classes, interfaces, packages and also their…

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Question: How To Round Double In Java?

How do you round a double in Java? The code snippet below illustrates the usage of Math. round () when converting a double data type to an int in Java: class DoubleToInt { public static void main( String args[] ) { double DoubleValue = 3.6987; int IntValue = (int) Math. round ( DoubleValue ); System.…

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