Function

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!");

}

}

}