text: Check if a line touches or intersects a circle | Java program to check if a line touches or intersects or outside a circle . ; Finding the distance of line from center . ; Checking if the distance is less than , greater than or equal to radius . ; Driven Program
code: import java . io . * ; class GFG { static void checkCollision ( int a , int b , int c , int x , int y , int radius ) { double dist = ( Math . abs ( a * x + b * y + c ) ) / Math . sqrt ( a * a + b * b ) ; if ( radius == dist ) System . out . println ( " Touch " ) ; else if ( radius > dist ) System . out . println ( " Intersect " ) ; else System . out . println ( " Outside " ) ; } public static void main ( String [ ] args ) { int radius = 5 ; int x = 0 , y = 0 ; int a = 3 , b = 4 , c = 25 ; checkCollision ( a , b , c , x , y , radius ) ; } }