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Articles on Trending Technologies
Technical articles with clear explanations and examples
How can we retrieve file from database using JDBC?
The ResultSet interface provides the methods named getClob() and getCharacterStream() to retrieve Clob datatype, In which the contents of a file are typically stored.These methods accept an integer representing the index of the column (or, a String value representing the name of the column) and retrieves the value at the specified column.The difference is the getClob() method returns a Clob object and the getCgaracterStream() method returns a Reader object which holds the contents of the Clob datatype.ExampleAssume we have created a table named Articles in the database with the following description.+---------+--------------+------+-----+---------+-------+ | Field | Type ...
Read MoreNumber of instructions in 8085 Microprocessor
INTEL 8085 has a very enriched Instruction Set. Varieties of instructions it can execute. Instructions will have different Byte counts, ranging from 1-Byte to 3-Bytes. Opcode always occupies 1-Byte in the memory. As we know that, with 8 bits for the opcode, 28 = 256 distinct opcodes are possible. In hexadecimal notation, the opcodes can range from 00H to FFH. Each opcode will correspond to an instruction. Thus from the calculation, it is possible to have 256 instructions in the instruction set of 8085. However, only 246 opcodes are implemented in 8085. They can be classified under 66 types, which ...
Read MoreWhat are the different types of LED available?
LEDs (Light emitting diodes) are very widely used in today's electronics equipment and they are ruling the world's display technologies today. LED's are used for much electronic equipment. Mostly they are used as panel indicators on televisions, radios and other domestic electronic and industrial equipment. There are different types of LEDs.Traditional inorganic LEDs − These are used for small LED lamps, panel indicators etc.,High brightness LEDs − These are used for domestic lighting.Organic LEDs − Organic LEDs uses organic materials and are replacing the traditional types of LEDs with increased efficiency.
Read MoreWhat are free options available to generate closed captions from Audio/Video?
There are some free options available to generate closed captions from Audio/Video.Amara − Amara is one such tool. It is very easy to learn and provides the best platform to create captions from scratch.Youtube − Youtube is the most popular tool which is available for free. It has great features to create captions.Subtitle Edit − This is a free tool which has to be downloaded on your laptop and desktop and you can start using it even offline.
Read MoreWhat are the job opportunities in Electronics and communication?
A graduate of Electronics and communications engineering have a lot of opportunities as the subject is very vast. People can take one of the fields related to EC and become an expert in that and then explore the opportunities in that area. Apart from their core field, electronics engineers have a lot of openings in IT sector also.An EC engineer can explore opportunities from top recruiters like Siemens, Motorola, Intel, Tech Mahindra, BHEL, Flextronics and Government sector like Indian Airforce, Navy and also Railways.
Read MoreInterfacing ADC with 8085 Microprocessor
In this section we will see how ADC (Analog to Digital Converter) works with Intel 8085 Microprocessor. The Analog to Digital Conversion is a quantizing process. Here the analog signal is represented by equivalent binary states. The A/D converters can be classified into two groups based on their conversion techniques.In the first technique it compares given analog signal with the initially generated equivalent signal. In this technique, it includes successive approximation, counter and flash type converters. In another technique it determines the changing of analog signals into time or frequency. This process includes integrator-converters and voltage-to-frequency converters. The first process ...
Read MoreWhy do we need Good Manners?
Good manners mean the social and polite behavior that a person possesses. Good manners play a vital role in building human relations. It is the back bone of a stable social pattern. Good manners imply towards the certain values and behavior of human relationship which keeps the society alive.Good Manners refers to being humble, polite, respectful, courteous and well-cultured social behavior. A well-mannered man/woman is respected and esteemed wherever he goes and in whatever condition of life, he may be. Among students, in particular, the preservation of good manners is a boon and it costs nothing.Why do we need Good MannersWe ...
Read MoreHistory of Microprocessor
Fair child semiconductors (founded in 1957) invented the first Integrated Circuit in 1959 that marked the microprocessor history. In 1968, Gordan Moore, Robert Noyce and Andrew Grove resigned from the Fair child semiconductors and started their own company: Integrated Electronics (Intel). In 1971, the first microprocessor Intel 4004 was invented. A microprocessor is also known as a central processing unit in which numbers of peripherals’ are fabricated on a single chip. It has ALU (arithmetic and logic unit), a control unit, registers, bus systems and a clock to perform computational tasks.Generation of Microprocessor1st GenerationThis was the period during 1971 to ...
Read MoreVcc and Vss pins
VCC (Voltage Common Collector) is the higher voltage with respect to GND (ground). VCC is the power input of a device. It may be positive or negative with respect to GND. When the only positive power supply is used then VSS (Voltage Source Supply) means ground or zero. The Intel 8085 Microprocessor needs a power supply of +5 V DC for its working. Pin 40 of Intel 8085 is the Vcc pin. It should be connected to +5 V DC power supply. Pin 20 of 8085 is the Vss pin.
Read MoreHow to find edit text values start from Alphabet or Not?
This example demonstrate about How to find edit text values start from Alphabet or Not.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken edit text and button view to verify edit text data is starting with Alphabet.Step 3− Add the following code to java/MainActivity.xmlpackage com.example.myapplication; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.EditText; import android.widget.Toast; public class MainActivity extends AppCompatActivity { ...
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