import java.util.*;
import java.lang.*;
import java.io.*;
// The main method must be in a class named "Main".
class Main {
public static void main(String[] args) {
int scelta;
Scanner num=new Scanner(System.in);
double lato1, lato2, lato3;
Triangolo t1;
do {
System.out.println(" 1. scaleno\n 2. isoscele\n 3. equilatero\n 0.esci\nfai una scelta");
scelta = num.nextInt();
switch (scelta) {
case 1:
System.out.println("inserisci i tre lati separati da uno spazio ");
lato1 = num.nextDouble();
lato2 = num.nextDouble();
lato3 = num.nextDouble();
t1 = new Triangolo(lato1, lato2, lato3);
System.out.println (" Perimetro = " + t1.perimetro());
break;
case 2:
System.out.println("inserisci le misure dei due lati diversi separati da uno spazio ");
lato1 = num.nextDouble();
lato2 = num.nextDouble();
t1 = new Triangolo(lato1, lato2);
System.out.println (" Perimetro = " + t1.perimetro());
break;
case 3:
System.out.println("inserisci la misura del lato");
lato1 = num.nextDouble();
t1 = new Triangolo(lato1);
System.out.println (" Perimetro = " + t1.perimetro());
break;
}
} while (scelta!=0);
}
}
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