Create file, file1, with the following values: 35 20 -43 -10 6 7 13 12.0 1.5 -3.

Question

Create file, file1, with the following values: 35 20 -43 -10 6 7 13 12.0 1.5 -3.5 -2.54 3.4 45.34 22.13 true false true false true false Write a program in Java to do the following: -Open "file1" and read the first value, n, which is supposed to be an integer describing the size of the upcoming arrays of integer, float, and Boolean values. -Create one-dimensional arrays of n integer, floating point, and Boolean values. -Populate the three created arrays by reading their values from file1. -Declare sum as integer and set it to 0. -Declare sum f as float and set it to O. Of. -Use a for loop to go through each element of the Boolean array, and if an element is "true" then add the corresponding element in the integer array to sum, and also add the corresponding element in the floating-point array to sum f. -Print all three arrays, sum, and sum f.

Explanation / Answer

Hi, Please find my implementation.

Please let me know in case of any issue.

import java.io.File;

import java.io.FileNotFoundException;

import java.util.Scanner;

public class FileReadOperation {

   public static void main(String[] args) throws FileNotFoundException {

       // opening file

       Scanner sc = new Scanner(new File("file1"));

       String line;

       int n = sc.nextInt(); // reading n value

       // creating three array

       int[] intArr = new int[n];

       float[] doubleArr = new float[n];

       boolean[] boolArr = new boolean[n];

       // reading all three lines and putting content in respective array

       int i=0;

       // reading first n integers

       while(i < 7){

           intArr[i++] = sc.nextInt();

       }

       i = 0;

       // reading next n double values

       while(i<7)

           doubleArr[i++] = sc.nextFloat();

       i = 0;

       // reading next n boolean values

       while(i<7)

           boolArr[i++] = sc.nextBoolean();

      

       int sum = 0;

       float sumf = 0;

      

       for(i=0; i<n; i++){

           if(boolArr[i]){

               sum = sum + intArr[i];

               sumf = sumf + doubleArr[i];

           }

       }

      

       // printing all array

       for(i=0; i<7; i++)

           System.out.print(intArr[i]+" ");

       System.out.println();

       for(i=0; i<7; i++)

           System.out.print(doubleArr[i]+" ");

       System.out.println();

       for(i=0; i<7; i++)

           System.out.print(boolArr[i]+" ");

       System.out.println();

       System.out.println("Sum: "+sum);

       System.out.println("Sumf: "+sumf);

   }

}

/*

Sample run:

35 20 -43 -10 6 7 13

12.0 1.5 -3.5 -2.54 3.4 45.34 22.13

true false false true false true false

Sum: 32

Sumf: 54.8

*/

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.