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gladu [14]
3 years ago
10

Help please! I need help with this question, it’s very hard.

Computers and Technology
1 answer:
sasho [114]3 years ago
7 0

Answer:

1. PRINTER

2.Proj

3.USB

4.CAM

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Write a public static method called getPIDs that has a parameter of type Map called nameToPID (keys are student names and values
Rasek [7]

Answer:

Java program is explained below

Explanation:

import java.util.HashSet;

import java.util.Map;

import java.util.TreeMap;

public class TruckRace1 {

   public static HashSet<String> getPIDs (Map<String,String>nameToPID ){

       HashSet<String> pidSet = new HashSet<>();

       for(String ids: nameToPID.values()){

           pidSet.add(ids);

       }

       return pidSet;

   }

   public static void main(String[] args) {

       Map<String,String> pids = new TreeMap<>();

       pids.put("John","123");

       pids.put("Jason","124");

       pids.put("Peter","125");

       pids.put("Alice","126");

       pids.put("Peny","129");

       HashSet<String> ids = getPIDs(pids);

       for(String id:ids){

           System.out.println(id);

       }

   }

}

4 0
3 years ago
Your computer is crashing on a regular basis. Which of the following is an operation available to the user that should help rese
Neko [114]

Answer

System restore

Explanation

System restore is a recovery feature that helps restore your system to the previous condition or point. Most computers have system restore disks which are an advantage to the users especially when the computer clashes.These disks are very effective when it comes to restoring the system to its initial state.

6 0
3 years ago
Read 2 more answers
Which type of shape allows you to add text that can be moved around.
Kipish [7]

Answer:

Move a text box, WordArt, or shape forward or backward in a stack. Click the WordArt, shape, or text box that you want to move up or down in the stack. On the Drawing Tools Format tab, click either Bring Forward or Send Backward.

3 0
2 years ago
Develop a simple game that teaches kindergartners how to add single-digit numbers. Your function game() will take an integer n a
Lyrx [107]

Answer:

2 correct answer out of 3

5 0
3 years ago
Write a class called Course that represents a course taken at a school. Represent each student using the modified Student class
Vinvika [58]

Answer:

The code is given below with its appropriate output

Explanation:

//Student.java

import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

import java.util.Scanner;

public class Student {

public String firstName;

public String lastName;

public float[] marks;

Scanner scanner = new Scanner(System.in);

public Student(String firstName, String lastName) {

this.firstName = firstName;

this.lastName = lastName;

}

public void getdetail() {

System.out.println("enter only five marks");

marks = new float[5];

int count = 0;

for (int i = 0; i < 5; i++) {

float mark = 0;

++count;

if (count <= 5) {

System.out.println("enter score " + count);

mark = scanner.nextFloat();

if (mark >= 0.0 && mark <= 100.0)

marks[i] = mark;

else {

System.out.println("you entered mark is invalid");

marks[i] = 0;

}

} else

System.out.println(" maximum is five only");

}

}

public void tostring() {

System.out.println("firstname :" + "\t" + firstName + "\t" + "lastname :"

+ "\t" + lastName + "\n" + "the marks are");

int count = 0;

for (float mark : marks) {

count++;

System.out.println("the mark of " + count + " is " + mark);

}

}

public void Averagecal() {

float sum = 0.0f;

for (float mark : marks) {

sum = sum + mark;

}

float avg = sum / 5;

System.out.println("average of a student is " + avg);

}

}

//Course.java

import java.io.*;

import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

import java.util.Scanner;

public class Course {

public String courseName;

public int number;

Student[] students;

Scanner scanner = new Scanner(System.in);

public Course(String courseName) {

this.courseName = courseName;

}

public void addStudents() {

System.out

.println("how many no of students you want to add for this particular course");

int count = scanner.nextInt();

students = new Student[count];

for (int i = 0; i < count; i++) {

System.out.println("enter the first name");

String fname = scanner.next();

System.out.println("enter the last name");

String lname = scanner.next();

Student s = new Student(fname, lname);

s.getdetail();

s.tostring();

s.Averagecal();

students[i] = s;

}

}

public void roll() {

int count = 0;

for (Student stud : students) {

count++;

}

System.out.println("the no of students in this " + courseName

+ " course is " + count);

}

}

//Driver.java

import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

import java.util.Scanner;

public class Driver {

public static void main(String[] args) {

Course course = new Course("java");

course.addStudents();

course.roll();

}

}

<u>output: </u>

C:\Users\Daniel\Desktop\New folder>javac Student.java

C:\Users\Danie;\Desktop\New folder>javac Course.java

C:\Users\Daniel\Desktop\New folder>javac Driver.java

C:\Users\Daniel\Desktop\New folder>java Driver

how many no of students you want to add for this particular course ?

1

enter the first name

john

enter the last name

rich

enter only five marks

enter score 1

89

enter score 2

91

enter score 3

85

enter score 4

78

enter score 5

96

firstname : john lastname : rich

the marks are

the mark of 1 is 89.0

the mark of 2 is 91.0

the mark of 3 is 85.0

the mark of 4 is 78.0

the mark of 5 is 96.0

average of a student is 87.8

the no of students in this java course is 1

C:\Users\Ravi\Desktop\New folder>

3 0
3 years ago
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