class Main {
public static void main(String[] args) {
FunctionOne(); //this will print out a lucky number from 1 to 100
System.out.println("The hypotenuse of the right triangle with adjacent = 8cm and opposite = 6cm is: " +FunctionTwo(8,6) + "cm"); //this will calculate a hypotenuse with adjacent = 8 and opposite = 6
FunctionFour(); //this will calculate x using quadratic formula
}
//this function does not return value and it will generate a random number from 1 to 100
public static void FunctionOne(){
double randomnumber;
randomnumber = Math.round(Math.random()*100); //Math.random() will randomly genarate number and it will time 100 then Math.round will round the number to it nearest value.
System.out.println("The lucky number is: "+randomnumber);
}
//this function will calculate and return the value of hypotenuse
public static double FunctionTwo(double a, double o){
return Math.hypot(a,o); //this method will return the value of square root of square A and square O
}
// this function will calculate x using quadratic formula
public static void FunctionFour(){
//input the value of a,b,c
double a =16;
double b =2;
double c = 1;
//these are x1 and x2 for now they don't have any value
double x1 =0;
double x2 =0;
double discriminant = Math.pow(b,2)-4*a*c; // this is discriminant used to identify if this equation will have root or not, and Math.pow(b,2) is b to the power of 2
if (discriminant >= 0){ //if the discriminant greater or equal to 0 it will calculate and print out x1 and x2
x1 = (-b+Math.sqrt(discriminant))/(2*a);//Math.sqrt is used to calculate the square root of the discriminant
x2 = (-b-Math.sqrt(discriminant))/(2*a);
System.out.println("x1 = "+ x1);
System.out.println("x2 = "+ x2);
}if (discriminant ==0){ //if the discriminant equal to 0 then it will print out there is one real root and it's value
System.out.println("There is one real root: "+ x1);
}else{ //if it's lower than 0 then there's no real root
System.out.println("There are no real root!");
}
}
}
