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Sunny_sXe [5.5K]
3 years ago
9

Examine the following code.

Computers and Technology
1 answer:
liberstina [14]3 years ago
8 0

number three:

"The declared type of obj is Object. The actual type is Integer."

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Write a method called classAttendence() that creates a 10-by-10 two-dimensional array and asks for user input to populate it wit
gladu [14]

Answer:

The method written in Java is as follows:

public static void classAttendance(){

   Scanner input = new Scanner(System.in);

   String[][] names = new String[10][10];

   for(int i =0;i<10;i++){

    for(int j =0;j<10;j++){

       System.out.print("Student Name: "+(i+1)+" , "+(j+1)+": ");

       names[i][j] = input.nextLine();        

    }  

   }

}

Explanation:

This defines the classAttendance() method

public static void classAttendance(){

   Scanner input = new Scanner(System.in);

This declares the 2D array of 10 by 10 dimension as string

   String[][] names = new String[10][10];

This iterates through the rows of the array

   for(int i =0;i<10;i++){

This iterates through the columns of the array

    for(int j =0;j<10;j++){

This prompts user for student name

       System.out.print("Student Name: "+(i+1)+" , "+(j+1)+": ");

This gets the student name from the user

       names[i][j] = input.nextLine();        

    }  

   }

The method ends here

}

<em>See attachment for complete program that include main method</em>

Download txt
6 0
3 years ago
Which action will help you protect data in your computer in case of an earthquake?
Len [333]

Answer:

Explanation: 13

8 0
3 years ago
Read 2 more answers
Wap in java to complete the following (16*1) +(14*2) +(12*3) +(10*4) +(8*5) +(6*6) +(4*7)​
vladimir1956 [14]

Answer:

It goes like:

public class Program

{

public static void main(String[] args)

{

int j=18;

int sum=0;

for (int i =1; i<7; i++)

{

sum=sum+(i*(j-2));

j=j-2;

}

System.out.println(sum);

}

}

Explanation:

<u>Variables used: </u>

j : controls the first number in product and decreases by 2 each time the loop runs.

sum: saves the values of addition as the loop runs.

3 0
3 years ago
Write a program that reads in a text file, infile.txt, and prints out all the lines in the file to the screen until it encounter
ivanzaharov [21]

Answer:

Explanation:

f=open("infile.txt","r")

flag=True

while(flag):

s=f.readline().strip()

if(len(s)>=4):

print(s)

else:

flag=False

8 0
3 years ago
Here is the list of problems to choose from:
olya-2409 [2.1K]

Answer:

There's a parking lot that is 600m² big. The lot must be able to hold at least 3 buses and 10 cars.

Each car takes up 6m² and each bus takes up 30m².

However, there can only be 60 vehicles in the lot at any given time.

The cost to park in the lot is $2.50 per day for cars and $7.50 per day for buses. The lot must make at least $75 each day to break even.

What is a possible car to bus ratio that would allow the lot to make profit?

3 0
3 years ago
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