System.out.printf("%.2f",dd);
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner in = new Scanner(System.in);
int height, width;
char status;
height = in.nextInt();
width = in.nextInt();
Board board = new Board(height, width);
status = board.getStatus();
System.out.print(status);
}
}
class Board{
int A, B;
public Board(int A, int B){
this.height = A;
this.width = B;
}
public char getStatus(){
if(A<=B){
return status(1);
}else{
return status(1.0);
}
}
public char status(double rate){
return "B";
}
public char status(int rate){
return "A";
}
}
4:
import java.util.Scanner;
public class Main{
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
double x1,x2,y1,y2,a,b,disance;
while(in.hasNextDouble()) {
x1=in.nextDouble();
x2=in.nextDouble();
y1=in.nextDouble();
y2=in.nextDouble();
a=x1-x2;
b=y1-y2;
disance=dis(a,b);
System.out.printf("%.2f",disance);
System.out.println();
}
}
public static double dis(double x,double y) {
double d;
d=Math.sqrt(x*x+y*y);
return d;
}
}