Java Exercises: Test if a given number is a perfect square or not
Java Basic: Exercise-197 with Solution
Write a Java program to test if a given number (positive integer ) is a perfect square or not.
Input number: 3 Output: 1 2 3 8 9 4 7 6 5Pictorial Presentation:
Sample Solution:
Java Code:
import java.util.*;
public class Solution {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.print("Input a positive integer: ");
int n = in .nextInt();
System.out.print("Is the said number perfect square? " + is_Perfect_Square(n));
}
public static boolean is_Perfect_Square(int n) {
int x = n % 10;
if (x == 2 || x == 3 || x == 7 || x == 8) {
return false;
}
for (int i = 0; i <= n / 2 + 1; i++) {
if ((long) i * i == n) {
return true;
}
}
return false;
}
}
Sample Output:
Input a positive integer: 6 Is the said number perfect square? false
Flowchart:
Java Code Editor:
Company: LinkedIn
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