Aulas do Curso (194 vídeos)
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In this lecture we are discussing 1) what is variable? 2) When you say about software then does means in term of data? 3…
Variables are used to store data. Recommend Books : 1. Head First Java : http://amzn.to/2owFrf0 2. Java Complete Refer…
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To work with any software, first you need to create a Source File and then compile it to convert it in the byte code. Af…
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This video explains how to learn or watch videos to learn Java from Telusko Check out our courses: Complete Java Devel…
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A shorthand operator is a shorter way to express something that is already available in the Java programming language Sh…
Representation of binary literal in java .Suppose I want to represent a number in binary format and not decimal format .…
The increment operator increases the value of the variable by one . these operators have two forms each: prefix and post…
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The bitwise NOT, or complement, is a unary operation that performs logical negation on each bit, forming the ones' compl…
The left shift operator shifts a bit pattern to the left, and the right shift operator shifts a bit pattern to the ri…
What is Boolean Data type and how to invert a boolean value boolean b = true; b=!b; Check out our courses: Complete J…
If else in java programming conditional statements. Suppose you want to check the number is prime or not so first we che…
Suppose I declare two variable i=1,j=5 and if i==1 then print j=6 then I instead of using if else we use j=i==1?6:7.You …
Java is a high-level programming language originally developed by Sun Microsystems and released in 1995. Java runs on a …
Learn how to implement Switch case Conditional Statements A switch works with the byte, short, char, andint primitive da…
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ASCII (American Standard Code for Information Interchange) is the most common format for text files in computers and on …
Different pattern in java using Loops Printinting star pattern using loop using java Check out our courses: AI Powere…
Improve your Programming Skills Free Java Course using loop in java to print pattern Check out our courses: Complete…
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Creating patterns in java is used to check command of a programmer on for loop. Its done just for practicing for loop. W…
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This video is about checking whether a number is palindrome or not. A palindromic number is a number that remains the sa…
In this video we will check whether a number is perfect number or not. A perfect number is a positive integer that is eq…
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number it…
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Swapping of Two numbers with 3 different Logics 1. Using Temp 2. Without using Temp variable 3. XOR In this video we wil…
In this video we will see how to swap 2 numbers in easiest way. We use a new formula: b = a+b-(a=b) to swap 2 numbers. …
In this video we will see: What is an Array in Java? An array is a collection of similar data types/ elements. Array is …
Click here for new video on Array : https://www.youtube.com/watch?v=xftdnEpZRuA An array is a container object that hol…
Arrays in java are objects. In this video we will see practical implementation of arrays in java. learn how to declare a…
In this tutorial we will see why we need enhanced for loop . This video is about the theory for enhanced for loop. In fu…
Enhanced for-loop has simplified the coding. But Don't use an enhanced for-loop when visiting each element of an array/c…
In this video we will assign random values in an array. Java provides a class called Random which belongs to package cal…
In this video we will see what are the type of errors we can get.If the array size is 50 and we are looking for 53rd el…
In this video we will talk about 2 dimensional array.Two-dimensional array are those type of array, which has finite num…
In a two-dimensional, or "2D," array, the elements can be arranged in rows and columns. Each element in the 2D array mus…
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The enhanced for loop was introduced in Java 5 as a simpler way to iterate through all the elements of a Collection (Col…
This is like a 2D array but with irregular subarray lengths. Its lengths are not even—they are jagged. Check out our cou…
Java array is an object the contains elements of similar data type. 3D array are collections of 2D arrays. In 3D array …
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This video will show you how to write main method in java in various ways main method in Java is an standard method whi…
Java is an Object Oriented Programming language Class and Object are most important features of OOPs Check out our cour…
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Why to use new keyword in java to create an object Check out our courses: Complete Java Developer Course Batch-4: http…
In this lecture we are discussing: 1)Know some terminology and term uses in java 2)What we need to call any method in ja…
Constructor in java is a special type of method that is used to initialize the object. Java constructor is invoked at t…
Constructor in java is a special type of method that is used to initialize the object. Java constructor is invoked at t…
Learn constructors overloading in java with an example using Implicit conversion Check out our courses: Complete Java…
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Java have huge number of build in classes in the jre. While working with JDBC, Servlets and other frameworks you can use…
Packages in java is a structure way of organizing the class files in Java according to different functionality and cat…
Access Modifiers: Public: If we class then we can use public. Protected: Visible to the package and all sub classes Priv…
Using javap command we can get the structure of a class of .class file. It just give you the overall structure of the c…
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An object variable is a container that holds a reference to a specific instance of a class. Class variable is variable w…
Printing Something without any statement in Main Method. Static Blocks are called before main Method. Static Blocks are …
The static import feature of Java 5 facilitate the java programmer to access any static member of a class directly. Ther…
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Recommend Books : 1. Head First Java : http://amzn.to/2owFrf0 2. Java Complete Reference : http://amzn.to/2osY04k Inhe…
Inheritance in java is a mechanism in which one object acquires all the properties and behaviors of parent object. The…
For Code click here... http://goo.gl/dD6w6K Inheritance in java is a mechanism in which one object acquires all the pro…
In Java, base class constructor with no argument gets automatically called in derived class constructor. if you want t…
What is Polymorphism? The ability of an object to take on many forms is known as polymorphism. The word "poly" means ma…
For code click here http://goo.gl/meqsDi Method Overloading : same name different parameters Check out our website: h…
For code click here http://goo.gl/Emr8tr Polymorphism in java is a concept by which we can perform a single action by d…
For code click here. http://www.telusko.com/code.htm?cname=Multilevel Method overriding forms the basis for one of Java…
Java Programming/Keywords/super. It is used inside a sub-class method definition to call a method defined in the super…
Super is a keyword used in java to refer the super class or base class. If the method overrides one of its superclass&#…
Final is a keyword in Java Final keyword can be used with variable to make it constant. It can be used with method to st…
This is a keyword used in java to refer the constructor of same class. It can be used inside the method or constructor …
Two types of variables in Java – primitive variables and reference variables. A primitive type refers a primitive data …
This video has theory explanation for abstraction in java. Abstraction is one of the concepts of OOPS object oriented pr…
An abstract class is an incomplete class. An abstract class is defined with the keyword abstract . We cannot create an o…
An abstract class is an incomplete class. An abstract class is defined with the keyword abstract . We cannot create an o…
Java does not support multiple inheritance because A Java class can only extend one parent class.Multiple inheritance is…
Multiple inheritance is not allowed in java and a class can only extend one parent class. Interfaces provide a form of m…
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Marker Interface in Java Interface without any method declaration. eg : Remote Interface, Serializable Interface An i…
We can perform various operation on String in java. The following are the operations: Length():use to can find length of…
toString is defined inside Object class. toString() method is used java when we want a object to represent string. overr…
System.in.read() in java is used to read the input from the user. System.in.read() gets the next byte of input from the …
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How to take input from user in Java. We can use Scanner class or BufferedReader Class. Scanner class belongs to java.uti…
Wrapper classes are used to convert any data type into an object. The primitive data types are not objects; they do no…
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Printing all the values from CSV using split method Check out our courses: Complete Java Developer Course Batch-4: htt…
Introduction to Java Strings, concept of immutability, creating string objects, Immutable string Immutable means unmodif…
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Throwable class is used to handle all exception which is extended by exception and error. In exception there are two typ…
There are multiple types of errors: 1. Syntax error 2. Runtime error 3. Logical error Arithmetic exception is a sub typ…
A checked exception is a type of exception that must be either caught or declared in the method in which it is thrown. …
Java finally block must be followed by try or catch block. Whether exception is handled or not Java finally block is alw…
Resources are introduced in java 1.7 and later. Resource should write in try as a parameter. And then no need to write c…
Throws is keyword in Java which is used to suppress the errors/ exceptions. And it should write after the main method it…
To write user defined error, we should write a class which will extends Exception class. That class should contain const…
Concepts : Clone, Shallow Cloning, Deep cloning, Clone : clone() is a method in the Java used for object duplication. S…
Shallow Copy:-Shallow copy means to make a copy of the reference to obj into obj1. It is simply say that call bye value…
Shallow Copy:-Shallow copy means to make a copy of the reference to obj into obj1. It is simply say that call bye value…
Click here for Libs : https://www.dropbox.com/sh/ydk7rdje190ew2m/AAAja6z6VxPFBSjd9gQWqZF0a?dl=0 QR code (abbreviated fr…
File handling is nothing but the storing of data and retrieving that data. UTF is a type of format in which the data wil…
Properties file is used to configure framework in Java. Check out our courses: Complete Java Developer Course Batch-4:…
The String class and all the wrapper classes implements java.io.Serializable interface by default. Deserialization is th…
Saving the state of an object in a file is known as serialization. Rather than serializing Java objects to binary format…
Deserialization is the reverse operation of serialization. We use FileInputStream class to give file name. Check out o…
If we want to know behavior of the class, interface of a class file, manipulation classes, fields, methods, and construc…
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In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed indep…
In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed indep…
In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed indep…
In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed indep…
In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed indep…
In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed indep…
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Collections are used to store, retrieve, manipulate, and communicate aggregate data. Typically, they represent data item…
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This video shows implementation of ArrayList. A List is an ordered Collection (sometimes called a sequence). Lists may c…
what is vector? Vector introduced in jdk 1.0. Vector is type of list which implement list same as array list. It is dyn…
What is LinkedList and ArrayList? Collection API complete playlist : https://goo.gl/zjpwWq This Video explains the the…
A comparison function, which imposes a total ordering on some collection of objects. Comparators can be passed to a sort…
Comparator is an Interface in Java. Comparators passed to a sort method such as Collections.sort. By using the Lambda ex…
In comparator interface we have compare() and comparable compareTo(). If you are going with custom class then it its pr…
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ArrayList supports dynamic arrays that can grow as needed. Arraylist implements a dynamic array by extending AbstractLis…
currentTimeMillis() is used to get time in milliseconds which is between current time and midnight, January 1, 1970 UTC…
1. Member inner class 2. Static Inner class 3. Anonymous inner class Lambda expression Link for Static keyword video :…
Inner class means class inside class. Inner classes in java: Member class, Nested class, Anonymous inner class, Lambda e…
Inner nested class: Inner class is the most important type of nested class. An inner class is a non-static nested class.…
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In this video we will see : - Basics of enum - Life before enum - How to create enum - Difference between enum of Java a…
An enum type is a special data type that enables for a variable to be a set of predefined constants. The variable must b…
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Fetch Multiple records from database | mysql Once you successfully logged into database, instantiates a 'Statement' obje…
INSERT is used to adds new rows to a table. INSERT is used to populate a newly created table or to add a new row (or row…
This video tells how to use forName in JDBC. Alternatively, you can use the forName() method of the java.lang.Class clas…
In computer software, a data access object (DAO) is an object that provides an abstract interface to some type of databa…
Learn DAO with an example: n computer software, a data access object (DAO) is an object that provides an abstract interf…
Jdk 1.8 New Features in Java Important topics for big data, hadoop, and Android Programming Java Essentials for Android…
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Java 8 Stream Api Features part 4 Lambda Expression Check out our website: http://www.telusko.com Follow Telusko on Tw…
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Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections…
Stream is an interface which is defined in java.util.stream package. It keeps the order of the data as it is in the sou…
Stream is an interface which is defined in java.util.stream package. It keeps the order of the data as it is in the sou…
BiFunction is a functional interface which can be used as the assignment target for a lambda expression or method refer…
Stream is an interface which is defined in java.util.stream package. BiFunction is a functional interface which can be …
Stream is an interface which is defined in java.util.stream package. map() and reduce() method is used. map() methods t…
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Description me : LVTI - Local Variable Type Inference Check out our courses: Java Full Stack and Spring AI - https://…
JUnit is an open-source unit testing framework for the Java programming language. It is one of the most popular framewor…
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