Question

Write a loop that subtracts 1 from each element in lowerScores. If the element was already 0 or negative, assign 0 to the element. Ex: lowerScores = {5, 0, 2, -3} becomes {4, 0, 1, 0}.

please bold the solution

import java.util.Scanner;
public class StudentScores {
public static void main (String [] args) {
Scanner scnr = new Scanner(System.in);
final int SCORES_SIZE = 4;
int[] lowerScores = new int[SCORES_SIZE];
int i;

for (i = 0; i < lowerScores.length; ++i) {
lowerScores[i] = scnr.nextInt();
}

/* Your solution goes here */

for (i = 0; i < lowerScores.length; ++i) {
System.out.print(lowerScores[i] + " ");
}
System.out.println();
}
}

Answer 1

Java program :

StudentScores.java

//import package
import java.util.Scanner;
//Java class
public class StudentScores {
   //main() method
   public static void main(String[] args) {
       //Scanner class Object
       Scanner scnr = new Scanner(System.in);
       //variable that store array size
       final int SCORES_SIZE = 4;
       //integer array with name lowerScores
       int[] lowerScores = new int[SCORES_SIZE];
       int i;//declaring variable i
       //using for loop to take input from user
       for (i = 0; i < lowerScores.length; ++i) {
           //reading each score entered by user and
           //storing in the array
           lowerScores[i] = scnr.nextInt();
       }
       //using for loop
       for (i = 0; i < lowerScores.length; ++i) {
           //checking element
           if(lowerScores[i]<=0)
           {
               //if element is negative then assign 0
               lowerScores[i]=0;//set element as 0
           }
           else {
               //when element is non zero this means positive then
               //subtract -1 from the element
               lowerScores[i]=lowerScores[i]-1;
           }
       }
      
       //using for loop to print the array elements
       for (i = 0; i < lowerScores.length; ++i) {
           //print each array element
           System.out.print(lowerScores[i] + " ");
       }
       System.out.println();//used for new line
   }
}

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Output :