Tech Blicks

  Nowadays, everything is possible with the source of internet and after the COVID-19 pandemic everything goes online. One can get quick solutions of their problems with the help of internet at their own pace. Online education is another form of benefit that you can gain with ease from the internet at your own pace and requirement. Many academies help people to learn the concepts online easily. People could find the best tutors in Slariya Physics academy, and they will help to clear your doubts in AP physics , IB Physics , IGCSE Physics , Physics for ITTJEE, MATHS, and Mechnaical Engineering. We found many students which are struggling hard to excel in all subjects. Topper in physics might be weak in chemistry, so even it is not possible to maintain the same level. The schools with a large number of students they could care for the individual one. While learning online the experts would follow up personally, and separate sessions given. It is also easy for the students to ask the ...

  If you have enrolled for IB Physic, you must be aware of tough syllabus with various topics and subtopics. It’s a challenging course hence many people are afraid to choose it. However, nothing is very hard if you have proper guidance and have will to work hard as well as work smart. Many students work hard but still are not able to get good scores, because of lack of proper guidance and don’t know how to work smart. Therefore if you want to get good grades in this course, you need to get proper guidance, and you can achieve that through getting an Good IB Physics Tutor Now, the problem is to find a good IB Physics Tutor, this is very easy. You can find good tutors in various tuition classes, they have their online portals and you can visit it to get all the information about it. If you like it all you have to do is get enrolled with them and they will make sure to solve all your problems regarding your course. How can IB Physics tutors help you get a better score? 1. Tutors are e...

Engineering Solutions by Prof Vikas Slariya offers you personalized IGCSE Physics Online classes to make you more self-sufficient learners. Over the few years, they have transformed the traditional classroom into a blended-learning environment that provides a personalized learning experience for each student. In this pandemic, every IGCSE tutor wants that learners stay home and safe and they will teach you online as you need, also to keep themselves safe from this pandemic. So customized learning includes the video lessons which are available 24/7 to help every individual in terms of uncertainty or curriculum based learning. Now, Coaching is no more limited to the only places ones as used to be in the past years, we have a worldwide connection. It is all because of technology, which is doing wonders in education sector. Digitalized classes(as every thing is going digital) have some flaws but of course positive points on much higher side. And the flaws mostly seen in the case of ch...

All java classes are derived from A) java.lang.Class B) java.util.Name C) java.lang.Object D) java.awt.Window   The jdb is used to A) Create a jar archive B) Debug a java program C) Create C header file D) Generate java documentation   What would happen if "String[]args" is not included as argument in the main method. A) No error B) Compilation error C) Program won't run D) Program exit   For execution of DELETE SQL query in JDBC, ............. method must be used. A) executeQuery() B) executeDeleteQuery() C) executeUpdate() D) executeDelete()   Which method will a web browser call on a new applet? A) main method B) destroy method C) execute method D) init method   Which of the following is not mandatory in variable declaration? A) a semicolon B) an identifier C) an assignment D) a data type   When a program class implements an interface, it must provide behavior for A) two methods defined in that interface B) any methods in a class C) only certain methods ...

The JDBC-ODBC bridge allows ……….. to be used as ……….. A) JDBC drivers, ODBC drivers B) Drivers, Application C) ODBC drivers, JDBC drivers D) Application, drivers   Which of the following is true about Java. A) Java does not support overloading. B) Java has replaced the destructor function of C++ C) There are no header files in Java. D) All of the above.   ……………. are not machine instructions and therefore, Java interpreter generates machine code that can be directly executed by the machine that is running the Java program. A) Compiled Instructions B) Compiled code C) byte code D) Java mid code   The command javac A) Converts a java program into binary code B) Converts a java program into bytecode C) Converts a java program into machine language D) None of the above.   Which of the following is not the java primitive type A) Byte B) Float C) Character D) Long double   Command to execute compiled java program is A) java B) javac C) run D) javaw   Java Servlet ...

Java programs are A) Faster than others B) Platform independent C) Not reusable D) Not scalable   Java has its origin in A) C programming language B) PERRL C) COBOL D) Oak programming language   Which one of the following is true for Java A) Java is object oriented and interpreted B) Java is efficient and faster than C C) Java is the choice of everyone. D) Java is not robust.   The command javac is used to A) debug a java program B) compile a java program C) interpret a java program D) execute a java program   Java servlets are an efficient and powerful solution for creating ………….. for the web. A) Dynamic content B) Static content C) Hardware D) Both a and b   Filters were officially introduced in the Servlet ……………… specification. A) 2.1 B) 2.3 C) 2.2 D) 2.4 Which is the root class of all AWT events A) java.awt.ActionEvent B) java.awt.AWTEvent C) java.awt.event.AWTEvent D) java.awt.event.Event   OOP features are i) Increasing productivity                   ...

“ Java Project Ideas ” is one of the common question ask when you have to choose a topic for you final year or semester projects. at that time you begin to ask “ what topic should you choose for you project “. Here are the some project ideas - New Patient Registry Management System Restaurant Billing Management System Library Management System ATM Management System Bus Ticket Booking Management System Movie Ticket Booking Management System Attendance Management System Medical Store Billing Management System Text Editor Projects in Java [I don't consider this single ideas a project] Currency Converter Project in Java[I don't consider this single ideas a project] Distance Calculator using Google API Advanced Calculator Project in Java[I don't consider this single ideas a project] Time Conversion by Country Java Project[I don't consider this single ideas a project] IP Address Detector [I don't consider this single ideas a project] Employee...

Code::Blocks is a free development environment for the C++ programming language. It supports 20 different compilers, including Microsoft Visual C++, C Tiny, Digital Mars, and Borland C ++. Plugins galore The program is fully configurable thanks to the numerous plugins and options . Features such as automatic formatting of code or even creating short games in the integrated development environment (IDE) can be accessed at any time by selecting the corresponding extension. Fast build process Code::Blocks gets rid of makefiles , making the build process much faster . If support for parallel compilation was added, the speed with which you can bake your binaries would be tremendous. Help is always at hand (in a PDF) What Code::Blocks offers is typical of any IDE worth its salt: tabs, line numbering, colored syntax, code auto completion, smart indentation, and so on. If you ever get stuck, just check out the PDF manual .

Do you know that shortcuts help you accelerate your development productivity? Indeed, the more time you use keyboards, the higher efficiency you get. Therefore today I’m going to share with you the common shortcut keys which are designed for editing code in NetBeans IDE. NOTE: Standard shortcuts are not covered, such as Ctrl + Space (auto-complete), Ctrl + A (select all), Ctrl + Z (undo), and the like. Ctrl + E or Shift + Delete : deletes the current line. Ctrl + Delete: deletes the next word after the cursor. If it is a compound (i.e. using camel case like fileHandler), then only the first word is deleted. Ctrl + Backspace: deletes the previous word before the cursor. Alt + Shift + Up: Moves up the current line (or a selected block of code) by one line:   Alt + Shift + Down: Moves down the current line (or a selected block of code) by one line: Ctrl + Shift + Up: Copies and moves up the current line (or a selected block of code) by one line:   Ctrl + Shift ...

In order for Java applications working with a database engine via Java Database Connectivity (JDBC) , an appropriate JDBC driver library is required to be available in the application’s classpath. A JDBC driver library consists of Java classes which implement low-level communication with the database engine. It talks with Java applications via JDBC API and usually bundled as a JAR or ZIP file.For reference, this article provides a summary of JDBC driver download for common databases including MySQL, SQL Server, Oracle, PostgreSQL, Apache Derby (Java DB) and SQLite. Click on a database name to go to download page of the appropriate JDBC driver library. Database Driver provider JAR file name Download size MySQL Oracle Corporation mysql-connector-java-3.0.17-ga-bin.jar 3.8 MB ~ 4.0 MB SQL Server Microsoft Corporation sqljdbc.jar, sqljdbc4.jar 2.3 MB ~ 4.2 MB Oracle Oracle Corporation jodbc5.jar, jodbc6.jar, … 1.2 MB ~ 4.2 MB PostgreSQL The PostgreSQL Global Development Group postgresql-9....

SQLite is a simple, small, fast, reliable, server-less, zero-configuration and no-installation SQL database library which is running in-process with the client application. Although there is no official JDBC driver library from www.sqlite.org , there is one provided by www.xerial.org – an XML Database Management System project. 1.    Download SQLite JDBC driver You can download the latest version of JDBC driver for SQLite here . The download is categorized by versions, so browse a directory for a specific version you want: 3.5.9, 3.6.16, 3.7.2, etc. As of this writing, the latest version is 3.7.2 which corresponds to the jar file sqlite-jdbc-3.7.2.jar.Beside Java class files, the jar file includes SQLite binaries for Windows, Linux and Mac (for both 32-bit and 64-bit).Place the sqlite-jdbc-VERSION.jar into your classpath. 2.    SQLite JDBC database connection URL The SQLite JDBC driver can load a SQLite database from file system or creates one in memory.Here is the syntax of database...

Apache Derby is a lightweight, portable database engine written purely in Java. Java DB is a just an Oracle’s distribution of Derby in their JDK.This article presents the steps to quickly get started with Derby, from downloading its JDBC driver to write code for making connections. 1.    Downloading Derby JDBC driver library Download the latest version of Derby here (as of this writing, the latest release is 10.9.1.0 ). The distribution includes the following pieces of software component: Component Jar files Embedded database engine and JDBC driver derby.jar Network client JDBC driver derbyclient.jar Network server derbynet.jar, derbyrun.jar Command line tools derbytools.jar Localization messages derbyLocale_xx_YY.jar If you are using JDK 1.7, then Derby is already included in JDK installation under the name Java DB in JDK_HOME\db directory. The jar files are located in JDK_HOME\db\lib directory.In both case, you have to place appropriate jar file to the classpath: derby.jar: f...

This tutorial walks through process of connecting a Java application to a PostgreSQL database server from downloading JDBC driver to write code that makes the connection. Before begin, make sure you have a version of PostgreSQL database server installed either on your development computer or on a dedicated server. Code in this tutorial is tested with PostgreSQL 9.1. 1.    Download PostgreSQL JDBC driver You can obtain the latest version of JDBC driver for PostgreSQL here . Currently there are two versions: JDBC3 Postgresql Driver : for JDK 1.4 and JDK 1.5 JDBC4 Postgresql Driver : for JDK 1.6 and JDK 1.7 So let choose the one matches with your JDK version. The download is actually a jar file so you can put it directly into your application’s classpath. Name of jar files are postgresql-VERSION.jdbc3.jar and postgresql-VERSION.jdbc4.jar. 2.    JDBC database URL for PostgreSQL The syntax of database URL for PostgreSQL looks like the following forms: jdbc:postgresql: database jdbc:...

This article provides examples of how to establish database connection with an Oracle database server – the first step to have Java applications working with one of the most popular database systems. Suppose you already had a version of Oracle database installed, such as Oracle Database 11g Express Edition . 1.    Download JDBC driver library for Oracle database Click here to visit Oracle’s JDBC driver download page: Select the JDBC driver version that matches Oracle database engine installed on your computer. Here we select Oracle Database 11g Release 2 (11.2.0.3) which brings us to the jar download page: As you can see, there are several jar files which may cause confusion. However, the main jar file is ojdbc5.jar (for Java 5 or later) or ojdbc6.jar (for Java 6 or later). Here we select the version for Java 6. Remember to select Accept License Agreement at the top, and click on the link ojdbc6.jar to download. NOTE: Oracle requires users to have an Oracle account for downloading,...

This article describes how to get JDBC driver and write code for making database connection to Microsoft SQL Server from a Java client. Suppose you have a light weight version of SQL Server installed, such as Microsoft SQL Server 2012 Express . 1.    Download Microsoft JDBC driver Click here to download Microsoft JDBC Driver 4.0 for SQL Server which supports: SQL Server versions: 2005, 2008, 2008 R2, and 2012. JDK version: 5.0 and 6.0. Run the downloaded program sqljdbc_<version>_<language>.exe . It will extract the files into a specified directory (default is Microsoft JDBC Driver 4.0 for SQL Server ). You will find two jar files sqljdbc.jar (for JDBC 3.0) and sqljdbc4.jar (for JDBC 4.0), plus some .dll files and HTML help files.Place the sqljdbc.jar file under your application’s classpath if you are using JDK 5.0 or sqljdbc4.jar file if you are using JDK 6.0 or later. 2.    JDBC database URL for SQL Server The syntax of database URL for SQL Server is as follows: jd...