Two programming languages, which have shaped the way in which human beings look at coding in general and development, in particular, are none other than C and Java. On one hand, where C is one of the earliest languages that had been developed and has served as the foundations of the deve...
Here are the 3 key difference between WeakHashMap, IdentityHashMap, and EnumMap in Java: 1. equal() vs == operator The fundamental difference between IdentityHashMap and other Map implementations like HashMap, Hashtable, WeakHashMap, or EnumMap it uses an equality operator (==) to search...
Iterator and Enumeration are Java cursors (Cursor is an Iterator, which is used to iterate or traverse or retrieve a Collection or Stream object's elements one by one.). They belong to Java collection framework. Enumeration was added in JDK 1.0 and Iterator in the JDK.1.2 version in the c...
Fail-fast iterators in Java throw ConcurrentModificationException exception if the collection is modified while iterating over it. Fail-safe iterators do not throw any exception even if the collection is modified while iterating over it.
Difference between Primitive and non primitive datatypes in JavaScript - The primitive data types are number, string, boolean, float etc. The non-primitive data types (Reference Type) are Array, Object etc.Examplevar number=10; var stringValue=John; var
Example: double data type in Java //Java double data type public class Main { public static void main(String[] args) { double a=7.0d; double b=9.0d; double res=a/b; System.out.println("Resulting double value "+res); double c=3.0; //No error System.out.println("double value witho...
curly brackets are mainly used in coding languages such as java, javascript, and python. they can be used for creating conditional statements, loops and modifiers that tell the computer what action to take. moreover, they serve as containers for information within programs like databases which ...
Here are key difference between a fixed and cached thread pools in Java. 1. When you submit a task they are immediately executed in cached thread but they can be placed in a queue, if no thread is free in case offixed thread pool. This means, if you want guaranteed and immediate execu...
Java: throw和throws 对于throw: 1、使用throw关键字抛出的异常对象,将会结束方法的执行; 2、throw只能抛出一个异常,之后会直接跳转至catch(如果有声明),而且可以不声明,这是一种不负责任的方式,没有做到实时异常反应(需要catch); 3、作用:抛出异常; 4、只作用于内部; 对于throws: 1、一个方法声明时可以使用...
Difference Between Concat() and + (String Concatenation Operator) in Javaconcat() This method is of java.lang.String class which takes only one parameter as String. public java.lang.String concat(java.lang.String); + If on either side of + operator, there is a String, then + operator...