Please tell me my fault why this code is not getting compiled

Question

import java.util.Scanner;
public class Program
{
public static void main(String[] args) {
double x ;
Scanner sc = new Scanner(System.in);
double num ;
System.out.println(" enter a no.");
num = sc.nextDouble();
if(num < 0);

{

System.out.println(" this is not a postive no ");
System.out.println(" existing Program ");
System.exit(0);

}
else
{

result = Math.sqrt(num);
}

System.out.println(" this is sqrt of " + result + " the given no. " + x );
}
}
https://code.sololearn.com/c9o1AT4xm6aR/?ref=app

Answer 1

Vikash Kumar Tiwari

Semicolon used to break statement so if you use semicolon after if block then condition will break there and else part will give error because there is no if part for else.

Answer 2

Vikash Kumar Tiwari

Try this

import java.util.Scanner;

public class Program {
public static void main(String[] args) {

Scanner sc = new Scanner(System.in);
double result = 0.0;
double num;

System.out.println(" enter a no.");
num = sc.nextDouble();

if(num < 0) {
System.out.println(" this is not a postive no ");
System.out.println(" existing Program ");
System.exit(0);
} else {
result = Math.sqrt(num);
}

System.out.println(" this is sqrt of " + result + " the given no. " + num);
}
}

Answer 3

Plz answer fastly

Answer 4

You have to initialize x and result double result = 0; double x = 0;
In if statement you have to remove the semi-colon.

Answer 5

No plz could u just correct the code

Answer 6

And send me the answer

Answer 7

Yaa that I understood

Answer 8

https://code.sololearn.com/cKopiEp0u8LF/?ref=app

Answer 9

import java.util.Scanner;
public class Program
{
public static void main(String[] args) {
double x = 0 ;
Scanner sc = new Scanner(System.in);
double num = 0 ;
System.out.println(" enter a no.");
num = sc.nextDouble();
if(num < 0)

{

System.out.println(" this is not a postive no ");
System.out.println(" existing Program ");
System.exit(0);

}
else
{

result = Math.sqrt(num);
}

System.out.println(" this is sqrt of " + result + " the given no. " + x );
}
}
See its not compiling

Answer 10

No the are faulty square braces in else statement.See my code again

Answer 11

I thank u

Answer 12

For ur precious help

Answer 13

I got my mistake

Answer 14

fuerhermore, the else statement is unnecessary. you can remove it