Notes

import java.util.Scanner;
public class Triangle {

Scanner h = new Scanner(System.in);

private double a, b, c; //sides
private int A, B, C; //angles

public void prompt() {

String[] numS, numA; //Holds User input
boolean pass = true;

while (pass == true) { //Prompts the user to choose a side(s), that they wish to change
System.out.println("Enter the sides you would like to alter (Seperate with a '-'): ");
numS = h.nextLine().split("-");
System.out.println("Your value of "+numS[0]+" was changed to ");
numS[0] = numS[0].toLowerCase();
System.out.println(numS[0]+" because sides cannot have a capital variable");

pass = false;

if (numS[0].matches("[A-Za-z]{1}")) {
System.out.println("Valid");
}
else {
pass = true;
System.out.println("invalid");
}


if (numS.length>3) { //Checks for Error: If user enters more than 3 sides
System.out.println("Invalid Input. A triangle only has 3 sides.");
pass = true;

}



if (pass == false) { //Prompts for the value for the sides chosen
boolean k= true;

while (k==true) {
for (int g=0; g<numS.length; g++) {
boolean z =true;
while (z ==true){

System.out.println("Enter the value of Side '"+numS[g]+"' :");

if (numS[g].equals(numS[0])){
a = h.nextDouble();
z = false;
k= false;
if (a<1) { //Checks for error: If the user enters ZERO or a negative #
z = true;
System.out.println("Invalid Input. Please enter a positive number");
}

}
else if (numS[g].equals("b")) {
b = h.nextDouble();
z = false;
if (b<1) { //Checks for error: If the user enters ZERO or a negative #
z = true;
System.out.println("Invalid Input. Please enter a positive number");
}
}
else if (numS[g].equals("c")) {
c = h.nextDouble();
z = false;
if (c<1) { //Checks for error: If the user enters ZERO or a negative #
z = true;
System.out.println("Invalid Input. Please enter a positive number");

}
}
System.out.println(a);
System.out.println(z);
}
}

if (numS.length ==3) {
if (a+b < c) {
k = true;
System.out.println("Invalid Input. Sum of any two sides, must be larger than the third side");

}
else if (b+c<a) {
k = true;
System.out.println("Invalid Input. Sum of any two sides, must be larger than the third side");
}
else if (a+c<b) {
k = true;
System.out.println("Invalid Input. Sum of any two sides, must be larger than the third side");
}
else {
k = false;

}
}



}
}


}

pass = true;

while (pass == true) {
System.out.println("Enter the Angles you would like to alter (Seperate with a '-'): ");
numA = h.next().split("-");
numA[0]= numA[0].toLowerCase();
pass = false;

if (numA.length>3) {
System.out.println("Invalid Input. A triangle only has 3 Angles.");
pass = true;

}

if (pass == false) {
for (int a=0; a<numA.length; a++) {
if (numA[a].equals("a")){
System.out.println("Invalid input: One of your values was a Side. Please only Enter Angles");
a= 50;
pass = true;
}
else if (numA[a].equals("b")){
System.out.println("Invalid input: One of your values was a Side. Please only Enter Angles");
a= 50;
pass = true;
}
else if (numA[a].equals("c")){
System.out.println("Invalid input: One of your values was a Side. Please only Enter sides");
a= 50;
pass = true;
}
}
}

if (pass == false) {

for (int g=0; g<numA.length; g++) {
boolean z = true;
while (z==true) {
System.out.println("Enter the value of Angle '"+numA[g]+"' :");

if (numA[g].equals("A")) {
A = h.nextInt();
z= false;
if (A < 1) {
System.out.println("Invalid Input. Please enter a positive number");
z = true;
}
}
else if (numA[g].equals("B")) {
B = h.nextInt();
z = false;
if (B<1) {
System.out.println("Invalid Input. Please enter a positive number");
z = true;
}

}
else if (numA[g].equals("C")) {
C = h.nextInt();
z= false;
if (C<1) {
System.out.println("Invalid Input. Please enter a positive number");
z = true;
}
}
}
}

}
}

}

public void print() {
System.out.println(a);
System.out.println(b);
System.out.println(c);
System.out.println(A);
System.out.println(B);
System.out.println(C);

}


}