help！array

Question

Please help with the question.

Your company is writing a program for a geometry course.
The program takes the number of squares as the first input, creates an array, and then takes the sides of squares as its elements.
Write the part of the program that receives a list of square sides and prints the area of those squares for the user.

Sample Input
2
3
4

Output
9
16

Explanation
In this example we have 2 squares (the first input) and their sides accordingly - 3 and 4 (the second and the third inputs). The area of the first square is 9 (3*3), the second one 16 (4*4).

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int length = scanner.nextInt();
int[] sides = new int[length];
for (int i = 0; i < length; i++) {
sides[i] = scanner.nextInt();
}
//your code goes here

}

for(int side : sides){
int side = side * side;
System.out.println(side);
}

}

Answer 1

// Correct source code and matching with the conditions of the problem //#Enhanced For loop

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int length = scanner.nextInt();
int[] sides = new int[length];
for (int i = 0; i < length; i++) {
sides[i] = scanner.nextInt();
}
//your code goes here
for (int i: sides){
i = i * i;
System.out.println(i);
}
}
}

Answer 2

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int length = scanner.nextInt();
int[] sides = new int[length];
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for (int i = 0; i < length; i++) {
sides[i] = scanner.nextInt();
sides[i] = sides[i]*sides[i];
System.out.println(sides[i]);
}
}
}

Answer 3

you wrote the code outside of main.
you are declaring the variable side twice in the same scope. Use
side =side*side;
Without int

Answer 4

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int length = scanner.nextInt();
int[] sides = new int[length];
for (int i = 0; i < length; i++) {
sides[i] = scanner.nextInt();
}
//your code goes here
for (int area: sides)
{
//Calculates the area of the square which is "area to the power 2"
//Use a Math function
area = (int) Math.pow(area, 2);
System.out.println(area);
}

}
}

Answer 5

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int length = scanner.nextInt();
int[] sides = new int[length];
for (int i = 0; i < length; i++) {
sides[i] = scanner.nextInt();
}
//your code goes here
for (int i: sides){
i = i * i;
System.out.println(i);
}
}
}

Good Luck

Answer 6

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int length = scanner.nextInt();
int[] sides = new int[length];
int a=0;
for (int i = 0; i < length; i++) {
sides[i] = scanner.nextInt();
if(sides[i]==sides[i])
{
a=sides[i]*sides[i];
System.out.println(a);
}
}
//your code goes here

}
}