Data Bank | Yazilim Ders

What is Remote Procedure Call (RPC) in Blockchain ?

Bruce Jay Nelson is believed to have coined the term RPC in 1981. It helps in building distributed, client serverbased...

192 Technology

What is R3 in Blockchain ?

R3, founded in 2014 by David E Rutter and Todd McDonald, is an enterprise software firm that is pioneering...

202 Technology

What is Quilt in Blockchain ?

Hyperledger Quilt is a one of the business Blockchain tools that aims to facilitate interoperability between ledger systems...

178 Technology

What is Halving in Cryptocurrency ?

Halving is an event when the reward for mining a new block of cryptocurrency is reduced to half. Halving ensures...

187 Technology

What is Greedy Contract ?

Greedy contracts are contracts that remain alive and lock Ether indefinitely. It does not release Ether in any condition...

210 Technology

What is Ethereum Enterprise Alliance (EEA) in Blockchain ?

The Ethereum Enterprise Alliance (EEA) is a member-led industry organization whose objective is to drive the use...

191 Technology

What is State Channel in Blockchain ?

A channel is a private blockchain overlay which allows for data isolation and confidentiality. Using state channels...

190 Technology

Why Do We Use Static Initializers in Java ?

In Java, a static initializer can run code during the initial loading of a class and it guarantees that this code will...

205 Java

What are the Situations in Which You Choose HashSet or TreeSet in Java ?

HashSet is better than TressSet in almost every way. It gives O(1) for add(), remove() and contains() operations...

188 Java

What are the Different Types of Classloaders in Java ?

Java Classloader is the part of the Java Runtime Environment (JRE) that loads classes on demand into Java Virtual Machine (JVM)...

203 Java

How Will You Create a Shallow Copy of a Map in Java ?

In Java, most implementations of Map interface provide a constructor to create copy of another map. But the copy method is not synchronized...

195 Java

Creating a Map with Reverse View and Lookup in Java

In a Map we can lookup for a value by using a distinct key. In a Map with reverse view and lookup, even the values...

192 Java

What is the Difference Between remove Methods of Collection and Iterator in Java ?

In Collection interface remove(Object o) method is used to remove objects from a Collection...

209 Java

When is UnsupportedOperationException Thrown in Java ?

In a Java collection UnsupportedOperationException is thrown when the requested operation is not supported by the collection...

200 Java

How Can We Improve the Performance of IdentityHashMap in Java ?

IdentityHashMap class has one tuning parameter for performance improvement: expectedMaxSize...

186 Java

What is the Importance of hashCode and equals Methods in Java ?

In a HashMap collection it is very important for a key object to implement hashCode() method and...

189 Java

What is the Difference Between Fail-fast and Fail-safe Iterator in Java ?

Differences between Fail-fast and Fail-safe iterators are as follows...

209 Java

What are the Differences Between a Vector and an ArrayList in Java ?

An ArrayList is a newer class than a Vector. A Vector is considered a legacy class in Java. The differences are...

181 Java

What are the Main Benefits of Collections Framework in Java ?

Main benefits of Collections Framework in Java are as follows...