The Java code retrieves student information from an SQLite database using the roll number as a query parameter. It uses the `getStudentByRollNumber` method to fetch the data and returns a `Student` object if found in the database.
To retrieve student information using the roll number from an SQLite database in an Android application, you can use the following Java code:
```java
// Define a method to retrieve student information by roll number
public Student getStudentByRollNumber(int rollNumber) {
SQLiteDatabase db = this.getReadableDatabase();
String[] projection = {
"roll_number",
"name",
"branch",
"marks",
"percentage"
};
String selection = "roll_number = ?";
String[] selectionArgs = {String.valueOf(rollNumber)};
Cursor cursor = db.query(
"students_table",
projection,
selection,
selectionArgs,
null,
null,
null
);
Student student = null;
if (cursor.moveToFirst()) {
student = new Student();
student.setRollNumber(cursor.getInt(cursor.getColumnIndexOrThrow("roll_number")));
student.setName(cursor.getString(cursor.getColumnIndexOrThrow("name")));
student.setBranch(cursor.getString(cursor.getColumnIndexOrThrow("branch")));
student.setMarks(cursor.getInt(cursor.getColumnIndexOrThrow("marks")));
student.setPercentage(cursor.getDouble(cursor.getColumnIndexOrThrow("percentage")));
}
cursor.close();
db.close();
return student;
}
```
In the above code, `students_table` represents the table name where the student details are stored in the database. The method `getStudentByRollNumber` takes the roll number as input and returns a `Student` object with the corresponding information if found in the database.
Make sure to initialize and use an instance of `SQLiteOpenHelper` to create and manage the database. Additionally, ensure that the `Student` class has appropriate setters and getters for the student details.
Note: This code assumes that you have already created the SQLite database with a table named `students_table` and appropriate columns for roll number, name, branch, marks, and percentage.
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Select the correct navigational path to create a PivotTable.
Select the range of cells.
Click the
tab on the ribbon and look in the
group.
Select the PivotTable option, make adjustments as needed, and click OK.
Answer:
insert and tables
Explanation:
took the test on edge
The correct navigational path for making a Pivot Table would be:
- Insert and Tables.
The appropriate way for creating a pivot table begins with a click made on the range table. This step is followed by moving to the insert option which will include the option of create. This create option would include selection of range and name of the table that is opted.
Thus, 'insert and tables' is the correct answer.
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1. Word Module 2 SAM Textbook Project
2. Word Module 2 SAM Training
3. Word Module 2 SAM End of Module Project 1
4. Word Module 2 SAM End of Module Project 2
5. Word Module 2 SAM Project A
6. Word Module 2 SAM Project B
The raise To Power Module of the program's calling error can be found in the real and integer values of the argument variables.
String should be spelled Sting. The set Double Module instead of returning an integer, does such. Access to local variables declared in the Main module is restricted to that module only. The raise To Power Module of the program's calling argument variables' real and integer values can be used to pinpoint the issue. Although the arguments for the raise To Power Module (Real value and Integer power) have been defined. The integer power is represented as "1.5," and the real value is supplied as "2." A real number, on the other hand, is a number with a fractional part. thus, a number without a fraction is considered an integer. 1.5 is a real number, whereas 2 is an integer. The parameters' contents when invoking raise To Power.
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How to be fluent in computer
Explanation:
1. Seeing people do technological innovations, so you have some motivation and inspiration to be fluent in computer
2. Try experimenting and trying stuff, like trying to learn how to code, how the internet work, etc.
3. work more with computers, for example, make a note with OneNote, making digital art with blender, adobe illustrator etc.
4. Try to learn how to be better at learning computer, like, if you do mistakes in your learning journey, try to avoid it next time
5. good luck ;)
Answer:
You can always practice or watch videos on how you can become fluent in Computer or ask someone that you know of thats good at Computer
Explanation:
Explain why certain locations in the
United States are in "dead zones” where cell
phones cannot send or receive messages.
Answer:
Since cell towers are not uniformly distributed, certain areas will fall into a dead zone. ... Obstructions: Trees, hills, mountains, high rise buildings and certain building materials tend to interfere with the transmission of cell signals and may block them out entirely.
Which of the following types of operating systems does Windows® belong to?
Real-time operating systems (RTOS)
Single-user, single task operating systems
Single-user, multi-tasking operating systems
Multi-user operating systems
Answer:
C) Single-user, multi-tasking operating systems
The type of operating system that Windows® belongs to is Single-user, multi-tasking operating system. Thus, the correct option for this question is C.
What do you mean by Operating system?An Operating system may be defined as a type of system software that significantly regulates computer hardware and software resources. It also provides some common services for computer programs. This system also directs the processing of programs on the basis of specific commands.
Windows are typically based on the graphical user interface system (GUI). This system deals with the collection of software that works on the command which represents Single-user, multi-tasking operating systems.
Therefore, the type of operating system that Windows® belongs to is Single-user, multi-tasking operating system. Thus, the correct option for this question is C.
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A team is in the process of developing a motion picture. Currently, they are creating ideas for advertisements to make people interested in the film. Of the five phases of filmmaking, which one are they most likely in at this point? pre-production distribution post-production production
pre-production
distribution
post-production
production
Answer:
It's distribution
Explanation:
I took the test
The term which are they most likely in at this point is distribution. Thus, option 2nd is correct.
What is distribution?One of the four components of the marketing mix is distribution. A distributor is a firm that is active in the distribution stage of the value chain. Distribution is the process of making a product or service available to the consumer or business user who need it.
A film is being created by a group of people. They are now brainstorming concepts for ads to pique people's interest in the film. One of the five stages of filmmaking is likely to be distribution at this time. At this time, they are most likely in the distribution category. As a result, option 2 is correct.
At this time, they are most likely in the distribution category. As a result, option 2 is correct.
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R Management 4. Assume that your system has one queue for jobs waiting for printing, and another queue for those waiting for access to a disk. Which queue would you expect to have the faster response? Explain your reasoning.
This suggests that the other queue, where jobs are awaiting access to a disk, will move more quickly.
Why is a system referred to as a computer?Its interconnected components (input, output, storage, and CPU) work together to accomplish the tasks specified in the program being run, a computer is referred to as a system.
This is so that other jobs can't interfere with the job that is done as even the printing queue operates on the first Attend, First Wait algorithm, which requires the queue waiting and printing services to go through numerous other procedures before the service provided to print. Additionally, since the job with printing must save the data on the disk, there is a chance that doing so will quickly and randomly alter the disk's content. This may lead to the potential that perhaps the disk is just not updated with the most recent information; as a result, the printing process may produce outdated information that is unusable. However. As it does not operate according to the initial Ask, first Serve algorithm, the queue waiting for disk access would've been able to handle more jobs quickly.
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Pre-Test
Active
2
3
6
7
8
9
In order for a fictionalized story to be based on real events, the author should include
O characters with strong feelings
O historical matenal
O a narrator
O dialogue
Some of the options in this question are not correct; here is the correct and complete question:
In order for a fictionalized story to be based on real events, the author should include
A. Characters with strong feelings
B. Historical material
C. A narrator
D. Dialogue
The correct answer is B. Historical material
Explanation:
Stories, novels, and poems are said to be based on real events if these include or are inspired by real people, settings, or historical events. This includes using any historical material and adapting it to create a story. For example, the play "The Tragedy of Julius Caesar" written by Shakespeare is a play based on real events as it includes real characters such as Julius Caesar and some of the events in it are based on historical events.
According to this, the element that is necessary to make a story to be based on real events is historical material. Also, others such as a narrator, dialogue, or characters with strong feelings can be found in most stories including those that are completely fictionalized.
Jane is designing a robotic arm that is required to move like a human arm. Select the simple machine she will use.
Answer:
A. System of Levers
Explanation:
How do you select from the insertion point to the beginning of the current line?
Press the Shift key, then press the Up Arrow key.
Press the Shift key, then press the Home key.
Press the Shift key, then press the Right Arrow key.
Press Ctrl + A.
Answer:
Press the Shift key, then press the Home key.
Explanation:
This is because Home key take you to a beginning of a line and shift selects.
Have a nice day!
Please mark as brainiest if this helped you! :)
what tasks should a laptop accomplish?
Answer:
general & personal used for computing.
What is it called when programming language is translated into binary?
O Booting
O Compiling
O Computing
O Running
whay is typography
Answer:
The style and appearance of printed matter. (source: Google)
Explanation:
It's an art form.
Which of the following is NOT a reason we use subprograms?
To add comments to lines of code
For code that will be reused
To simplify code
To help is organize longer programs
Answer: A. to add comments to Lines of code
Explanation:
What is the name of a language that computer programmers use?
Programming languages are the languages used by computer programmers to write code. Programming languages that are often used include Python, Java, C++, JavaScript, C#, Ruby, Swift, Go, and Rust.
Programming languages are formal computer languages that are used by software developers to communicate their intent to a computer. A programmer writes code using a programming language, which is then translated into machine code that can be executed by a computer.
Programming languages have a syntax, which is the set of rules that defines the structure of the code, and a semantics, which is the meaning of the code. The syntax and semantics of a programming language are defined by its specifications.
Programming languages come in a wide variety, each with special characteristics and skills. Python, Java, C++, JavaScript, C#, Ruby, Swift, Go, and Rust are a few of the most widely used programming languages. The choice of programming language depends on the specific requirements of the task or project being undertaken, as well as the skills and preferences of the programmer.
Each programming language has its own strengths and weaknesses, and is suited to different types of applications. For example, Python is often used for scientific computing, data analysis, and machine learning, while Java is widely used for building enterprise applications and Android mobile apps. C++ is often used for building high-performance systems, such as video games and operating systems, while JavaScript is commonly used for building interactive web pages and web applications.
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the program provided is missing the array of 5 student structs declaration in the main function. declare the array of structs and then step trough the program, ensuring you understand each step.
The program provided is missing the declaration of an array of 5 student structs in the main function. In order to fix this, we need to declare the array before calling any functions that use it.
To do this, we can simply add the following line of code to the main function:
```
struct student students[5];
```
This creates an array of 5 student structs called "students".
Once we have declared the array, we can step through the program to ensure we understand each step.
The program is designed to read in information about each student (their name, ID number, and grade) and then calculate the average grade for all students.
First, the program prompts the user to input information about each student. This information is stored in the array of student structs that we just declared.
Next, the program calls the "averageGrade" function to calculate the average grade for all students. This function takes the array of student structs as an argument and uses a loop to iterate through each student and add up their grades.
Finally, the "averageGrade" function returns the average grade, which is then printed to the console.
By declaring the array of student structs in the main function and stepping through the program, we can ensure that the program is running as intended and that we have a good understanding of how it works.
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Sure, here's an updated version of the program with the array of 5 student structs declared in the main function:
#include <stdio.h>
struct student {
char name[50];
int id;
int age;
};
int main() {
struct student students[5] = { // declaring the array of 5 student structs
{"John", 1, 20},
{"Jane", 2, 19},
{"Bob", 3, 21},
{"Sarah", 4, 22},
{"David", 5, 20}
};
for (int i = 0; i < 5; i++) {
printf("Student %d:\n", i+1);
printf("Name: %s\n", students[i].name);
printf("ID: %d\n", students[i].id);
printf("Age: %d\n", students[i].age);
printf("\n");
}
return 0;
}
The program now declares an array of 5 student structs named "students" in the main function, and initializes each struct with a name, ID, and age.
The for loop then iterates over each student in the array and prints their name, ID, and age to the console.
When run, the program should output the following:
Student 1:
Name: John
ID: 1
Age: 20
Student 2:
Name: Jane
ID: 2
Age: 19
Student 3:
Name: Bob
ID: 3
Age: 21
Student 4:
Name: Sarah
ID: 4
Age: 22
Student 5:
Name: David
ID: 5
Age: 20
This program is useful for storing and accessing information about multiple students, and could be easily modified to include additional fields such as GPA or major.
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Programs remember numbers and other data in the computer's memory and access that data through program elements called?
Programs remember numbers and other data in the computer's memory and access that data through program elements variables.
What are variables?A variable is a value that is subject to change based on external factors or data given to the application. A program typically consists of data that it uses while running and instructions that tell the machine what to execute.
Variables are storage units of computer memory. They are of different symbols.
Thus, variables are used by programs to store and access data, including numbers and other types of information.
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You have a screen and a pen, which is an instance of the Turtle class.
What are the initial coordinates of the pen?
(100, 0)
(0,0)
(100, 100)
(0, 100)
Answer:
(0,0) and (0,100) (I think)
Explanation:
Answer:
(0,0)
Explanation: I got it right
During a client briefing, a senior development manager suggests using microsoft azure for their container orchestration solution, since they are a microsoft shop for their desktops. they are standardizing on kubernetes for containers. what red hat openshift solution could you recommend?
Answer:
You could recommend Red Hat OpenShift, which is a comprehensive enterprise-grade platform for container orchestration, built on top of Kubernetes and designed for organizations that want to deploy, manage, and scale their applications. OpenShift provides a consistent and secure environment for deploying and managing containers, as well as a suite of integrated tools and services to support development and operations teams. Since the client is already using Microsoft Azure and standardizing on Kubernetes, Red Hat OpenShift would be a suitable solution to complement their existing infrastructure.
True or False? Jerry's company is beginning a new project, and he has been assigned to find a telecommunications tool that will improve operational efficiency. He lists the tasks that he wants the tool to be able to do. Then he does some research to find out what is available. The only thing remaining for Jerry to consider is where he can get the best deal on the technology.
Answer:
True
Explanation:
Answer:
It's false it took the assessment
A word feature that hides header and footer information, including the page number, on the first page of a document?
The word feature that hides the header and footer information, including the page number, on the first page of a document is called "Different First Page."
The word feature that can hide the header and footer information, including the page number, on the first page of a document is called "Different First Page." This feature is available in most word processing software programs, including Ms Word, G Docs, and Pages.
To use this feature in Microsoft Word, you can follow these steps:
Open your document in Word.Double-click on the header or footer area of the first page to open the Header & Footer Tools tab.In the Options group, select the "Different First Page" checkbox.Edit the header or footer of the first page as desired, without worrying about the page number.Close the Header & Footer Tools tab.By using this feature, the header and footer information on the first page of the document will be different from the header and footer information on subsequent pages, allowing you to hide the page number or other information that you don't want to appear on the first page.
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Make a list of symptoms of computer virus and preventive measures from computer virus.
Answer:
Intrusive pop-ups. Slow performance. Frequent crashes. Unknown login items. Storage space shortage. Missing files.
Explanation:
those are symptoms
the meaning of belt drives
Answer:
A belt drive is a transmission system that uses a flexible strip to transfer power. The turning disk is connected by a belt drive to the electric motor. A rubber belt drive is used to transfer power from one pulley to another. A belt drive is a transmission system that uses a flexible strip to transfer power.
Explanation:
Si una imagen tiene 5 pulgadas de ancho por 7 pulgadas de altura y está escaneada a 300 ppp, ¿Cuál será su dimensión en pixels?
Si una imagen tiene 5 pulgadas de ancho por 7 pulgadas de altura y está escaneada a 300 ppp, ¿Cuál será su dimensión en píxeles?La dimensión en píxeles de una imagen de 5 pulgadas de ancho por 7 pulgadas de altura escaneada a 300 ppp se puede encontrar de la siguiente manera:Primero.
multiplicamos las dimensiones de la imagen en pulgadas:5 × 7 = 35Luego, multiplicamos el resultado anterior por la resolución de escaneado, es decir, 300 ppp:35 × 300 = 10,500Por lo tanto, la imagen tendrá 10,500 píxeles en su dimensión.
Es decir, tendrá una dimensión de 10,500 píxeles en el ancho y 10,500 píxeles end.
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What is the definition of Graphic AIDS?.
Any image that helps you, the reader, understand the text that the visual aid is accompanied with is referred to as a visual graphic or graphic aid.
Too frequently, readers lazily scan or entirely ignore graphs, diagrams, charts, and tables. Grid graphs, tables, bar charts, flow charts, maps, pie diagrams, and drawings and sketches are the most popular. Relationships are displayed using grid graphs. A visual aid should always be used in conjunction with preparation to interest the audience, improve their comprehension of your message, elicit an emotional response, and assist you in communicating it effectively. Charts, diagrams, graphs, maps, flashcards, posters, images, photos, booklets, folders, pamphlets, cartoons, and comics are examples of graphic aids.
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You want a DNS server to handle queries for a domain with a standard primary zone hosted on another DNS server, and you don't want the server to be authoritative for that zone. How should you configure the server
When you want a DNS server to handle queries for a domain with a standard primary zone hosted on another DNS server, and you don't want the server to be authoritative for that zone, then you should configure the server as a non-authoritative server.
If you want a DNS server to handle queries for a domain with a standard primary zone hosted on another DNS server, you should configure the server as a non-authoritative server. This type of DNS server is designed to serve DNS queries from clients but does not contain a primary or secondary zone for the domain. Instead, it gets the zone information from authoritative servers and caches it to speed up future queries. In this way, the non-authoritative DNS server can provide quick responses to clients without the need to contact the authoritative DNS server each time. To configure a DNS server as a non-authoritative server, you should first install and configure the DNS service on the server. Then, you should configure the server to forward queries to the authoritative DNS server for the domain. This can be done by setting up a forwarder on the non-authoritative server that forwards all queries for the domain to the authoritative server. You can also configure the DNS server to use root hints to find the authoritative server for the domain if you don't have a forwarder set up.
To summarize, if you want a DNS server to handle queries for a domain with a standard primary zone hosted on another DNS server, you should configure the server as a non-authoritative server. This type of server gets the zone information from authoritative servers and caches it to speed up future queries. To configure a DNS server as a non-authoritative server, you should install and configure the DNS service on the server, and then set up a forwarder to forward queries to the authoritative server.
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write a program called minmax.py that accepts integers from standard input and writes their minimum and maximum values to standard output.
The program called minmax.py of minimum and maximum values to standard output will be:
import stdio a = stdio.readAllInts()
smallest = a[0]
largest = a[0]
for num in a:
if num > largest:
largest = num
if num < smallest:
smallest = num
print("Minimum =", smallest)
print("Maximum =", largest)
What is a program?
A program is a set of instructions written in a programming language that a computer can execute. Software contains computer program as well as documentation and other intangible components. Source code refers to a computer program in its human-readable form. Because computers can only execute native machine instructions, source code requires the execution of another computer program. As a result, using the language's compiler, source code can be converted to machine instructions. The resulting file is referred to as an executable. Source code may also be executed within the language's interpreter.
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What does Amara hope will
happen when Dad sits on the sofa?
Amara hope her Dad will be comfortable using the sofa. Check more about sofa below.
What does sofa implies?A sofa is known to be a type of long seat that is often made with arms and it also has a back rest. One can convert the sofa to a bed.
Conclusively, when Amara got the sofa for her dad, she hope that her dad will be comfortable using the sofa.
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Question 9 of 10
Which pair of devices work together to allow incoming and outgoing
communications between a predefined set of users?
The pair of devices that work together to allow incoming and outgoing communications between a predefined set of users are a router and a firewall.
What is a Router?A router is a network device that connects multiple networks together and forwards data packets between them. It is responsible for directing incoming and outgoing traffic between networks.
A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on a set of predetermined rules. It filters and blocks unauthorized access to the network and allows only authorized users to access the network.
Together, the router and firewall work to ensure that only authorized users can communicate with each other over the network. The firewall filters incoming and outgoing traffic based on the predetermined rules, while the router forwards the allowed traffic to its destination.
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A que se refiere el texto cuando afirma que nadie puede decir" Jesus es el Señor! sino con el espiritu santo (1 corintios 12, 1-11
Answer:
creo que serefiere a que nadie puede desir que jesus es el senor si no cree en lo que el mismo dice es como mintiendo sobre ello
Explanation:
perdon si no es la respuesta no se esplicarlo muy bien