Here are 7 rules to remember regarding Java Generics to understand Generics and handle interview and coding questions on Core Java. Object <– Fruit <– (Orange, Mango, etc siblings) Rule…
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Home › Java & Big Data Interview Q&As › ➡ Java interview › 300+ Core Java Interview Q&As › Archive for Core Java – Generics
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03: 12 Java Generics interview Q&As
Q1 What do you understand by the term type erasure with regards to generics? A1. The term type erasure is used in Java generics. In the interest of backward compatibility,…
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04: 5 Java generics Interview Q&As on wildcards with examples
Q1. If java.lang.Object is the super type for java.lang.Number and, Number is the super type for java.lang.Integer, am I correct in saying that List<Object> is the super type for List<number> and,…
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05: Overloaded methods Vs Generic methods in Java with JD-GUI & javap to look under the covers
In an earlier post we looked at Understanding Overriding, Hiding, and Overloading in Java?. We also discussed how “method overriding” gives polymorphism. In this post, let’s see how a “generic…
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Java Generics in no time “? extends” & “? super” explained with a diagram
Generics in Java can be be a bit tricky to get your head around. Hope the explanation below enhances your understanding of generics. This complements 5 Java generics interview Q&As…
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