1) CourseGradePrinter.java
package test;
import java.util.Scanner;
public class CourseGradePrinter {
public static void main(String[] args) {
Scanner sc = new
Scanner(System.in); // scanner object for takinginput
final int NUM_VALS = 4;
int[] courseGrades = new
int[NUM_VALS]; // creating int array of size 4
int i;
// intialising array
courseGrades[0] = 7;
courseGrades[1] = 9;
courseGrades[2] = 11;
courseGrades[3] = 10;
// infinite loop
while (true) {
// taking
input
System.out.print("Enter index : ");
i =
sc.nextInt();
if (i >
NUM_VALS) {
System.out.println("ERROR! invalid
index..exiting");
break;
}
System.out.println("Your marks : " + courseGrades[i]+"\n\n"); //
priniting
// marks
}
}
}
Please do it in java thanks a lot E zyBook 21: 198: 102 home> 5.2: Arrays...
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C programming only please 5.2.3: Printing array elements with a for loop. Write a for loop to print all elements in courseGrades, following each element with a space (including the last). Print forwards, then backwards. End each loop with a newline. Ex: If courseGrades = {7, 9, 11, 10}, print: 7 9 11 10 10 11 9 7 Hint: Use two for loops. Second loop starts with i = NUM_VALS - 1. (Notes) Note: These activities may test code with...
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