09 - Java program to find square root of a Number without sqrt method

Here we will learn a Java program to find square root of a Number without sqrt method.

A square root of a number is ..... a value that can be multiplied by itself to give the original number.
A square root of 9 is ...... 3, because when 3 is multiplied by itself we get 9

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[sanchayshrivas]

You could've explained the logic behind it, but nevertheless, it was informative. Thanks a lot!

[motasim_awadh]

try 1, ArithmeticException. can not divide by 0.

[imyoursunz_]

Is there another way in the code for square root?

[malayswain]

looks like you have hard coded only for square root no changes can be done if we want to know the cube root kindly explain us using binary search algorithm method.

[abhibhavyagupta]

How can we find the sqrt of non perfect sqrt numbers such as 10?

[krishmanjula]

easier approach:note-only integral part
int N, i, j, sum, main;
N=s.nextInt();
for(i=1; i*i<=N; i++)
{


}
System.out.println(i-1);

[thangmainguyenquyet]

how about 15, i loop by manual but it is hard, How??

[ojustejadoti]

Can you please try to upload a video on, how to find squreroot of float number