Question

IN JAVA

Task: Find the maximum value and minimum value in milesTracker. Assign the maximum value to maxMiles, and the minimum value to minMiles. Sample output for the given program:

Min miles: -10
Max miles: 40

Given Code:

import java.util.Scanner;

public class ArraysKeyValue {
public static void main (String [] args) {
final int NUM_ROWS = 2;
final int NUM_COLS = 2;
int [][] milesTracker = new int[NUM_ROWS][NUM_COLS];
int i = 0;
int j = 0;
int maxMiles = 0; // Assign with first element in milesTracker before loop
int minMiles = 0; // Assign with first element in milesTracker before loop

milesTracker[0][0] = -10;
milesTracker[0][1] = 20;
milesTracker[1][0] = 30;
milesTracker[1][1] = 40;

/* Your solution goes here */

System.out.println("Min miles: " + minMiles);
System.out.println("Max miles: " + maxMiles);
}
}

Answer 1

Note: Please copy the Yellow color bold highlighted code.

Program Screenshot:

Sample output:

Code to be copied:

import java.util.Scanner;

//Declare the class

public class ArraysKeyValue

{

      //main method

      public static void main (String [] args) {

            final int NUM_ROWS = 2;

            final int NUM_COLS = 2;

            int [][] milesTracker = new int[NUM_ROWS][NUM_COLS];

            int i = 0;

            int j = 0;

            int maxMiles = 0; // Assign with first element in milesTracker before loop

            int minMiles = 0; // Assign with first element in milesTracker before loop

            milesTracker[0][0] = -10;

            milesTracker[0][1] = 20;

            milesTracker[1][0] = 30;

            milesTracker[1][1] = 40;

            /*Your solution goes here*/

           

            // set the first element as maxMiles in milesTracker before loop

            maxMiles = milesTracker[0][0];

           

            // set the first element as minMiles milesTracker before loop

            minMiles = milesTracker[0][0];

            //Using two for-loops to compute the maxMiles

            for(i = 0; i < NUM_ROWS; ++i){

                  for(j = 0; j < NUM_COLS; ++j){

                        if(milesTracker[i][j] > maxMiles)

                        {

                              maxMiles = milesTracker[i][j];

                        }

                  }

            }

            //Using two for-loops to compute the minMiles

            for(i = 0; i < NUM_ROWS; ++i)

            {

                  for(j = 0; j < NUM_COLS; ++j)

                  {

                        if(milesTracker[i][j] < minMiles)

                        {

                              minMiles = milesTracker[i][j];

                        }

                  }

            }

           

            //Print the max and min miles

            System.out.println("Min miles: " + minMiles);

            System.out.println("Max miles: " + maxMiles);

      }

}