Question: how to calculate distance between two cities in java?
Answer: import java. lang. Math. *; class DistanceBwPoint. public static void main(String arg[]) { int x1,x2,y1,y2; double dis; x1=1;y1=1;x2=4;y2=4; dis=Math. sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1));