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lys-0071 [83]
3 years ago
7

Assign the size of userInput to stringSize. Ex: if userInput is "Hello", output is: Size of userInput: 5

Computers and Technology
1 answer:
Basile [38]3 years ago
8 0

Answer:

import java.util.Scanner;

public class StringSize {

  public static void main (String [] args) {

     Scanner scnr = new Scanner(System.in);

     String userInput;

     int stringSize;

     userInput = scnr.nextLine();

     

     /* Your solution goes here  */

     

     stringSize = userInput.length();

     

     System.out.println("Size of userInput: " + stringSize);

     return;

  }

}

Explanation:

stringSize = userInput.length();  //  userInput.length() will get the length of the string and  put in stringSize

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The following code does not work as intended. It is meant to input two test grades and return the average in decimal format:
vredina [299]

Answer:

Type casting error

Explanation:

Logically, the program is correct and it is expected to return the average value. However, test1 and test2 are int values and when you applies any algebraic expression on Int, it will result into Int.

So, in this part (test1 + test2 )/2, two integers are adding and the final result is still an integer and this part will act as an integer even if you multiple or divide with any external number.

For example,

test1 = 4

test2 = 5

test1 + test2 = 9

Now, if you divide it by 2, it will still react as an integer portion. So, 9/2 would result in 4 instead of 4.5. All the calculation is done on the right side before assigning it to a double variable. Therefore, the double variable is still getting the int value and your program is not working correctly.

The solution is to typecast the "(test1 + test2 )/2" portion to double using Double.valueOf(test1 + test2)/2 ;

I have also attached the working code below.

import java.util.Scanner;

public class Main

{

public static void main(String[] args) {

 System.out.println("Hello World");

 Scanner scan = new Scanner (System.in);

 int test1 = scan.nextInt();

       int test2 = scan.nextInt();

       double average = Double.valueOf(test1 + test2)/2 ;

       System.out.println("Answer: " + average);

}

}

4 0
3 years ago
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