Ive written this code for a programming class, its complete and correct im just interested in this for my own knowledge. How can I have this program run outside of Eclipse and place both the scanner and output into a JFrame or something similar? Any comments and advice would mean a lot. I am very new to java, this is my third program.
This is the main class
import java.util.Scanner;
public class SeqGenTest
{
/**
* Instance Variables passed to SeqGen.java
*/
String max;
String minmax;
String maxdiv;
boolean loop = true;
int a;
int b;
int c;
/**
* main method that allows user input to select and execute commands
* based upon the input of said user
* @param max, minmax, maxdiv,
* @return ints based upon calculation
*/
public static void main(String[] args)
{
boolean loop = true;
while(loop = true)
{
System.out.println("Enter a command (max, minmax, maxdiv, end)");
Scanner inpt = new Scanner(System.in);
String userInpt = inpt.nextLine();
if (userInpt.equalsIgnoreCase("max"))
{
System.out.println("Please enter your Max (intergers)");
int maximum = 0; //= inpt.nextInt();
try {
maximum = inpt.nextInt();
} catch (Exception e) {
System.out.println("The value you have input is not an integer");
inpt.close();
return;
}
if (maximum <= 0)
{
System.out.println("Error, empty sequence");
}
else if (maximum < -9 || maximum > 200)
{
System.out.println("Error, bounds exception");
}
else if (maximum > 0 && maximum < 201)
{
System.out.println("Here is your sequence:");
SeqGen x = new SeqGen (maximum);
while(x.hasNextValue()){
System.out.println(x.getNextValue());}
}
}
else if (userInpt.equalsIgnoreCase("minmax"))
{
System.out.println("Please enter your min, max (intergers)");
int minimum = 0;
int maximum = 0;
try {
minimum = inpt.nextInt();
} catch (Exception e) {
System.out.println("The value you have input is not an integer");
inpt.close();
return;
}
try {
maximum = inpt.nextInt();
} catch (Exception e) {
System.out.println("The value you have input is not an integer");
inpt.close();
return;
}
if (minimum > maximum)
{
System.out.println("Error, empty sequence");
}
else if (maximum < -9 || maximum > 200 || minimum < -9 || minimum > 200)
{
System.out.println("Error, bounds exception");
}
else if (maximum > 0 && maximum < 201 && minimum > 0 && minimum < 201)
{
System.out.println("Here is your sequence:");
SeqGen x = new SeqGen (minimum, maximum);
while(x.hasNextValue()){
System.out.println(x.getNextValue());}
}
}
else if (userInpt.equalsIgnoreCase("maxdiv"))
{
System.out.println("Please enter your min, max, div (intergers)");
int minimum = 0;
int maximum = 0;
int divisor = 0;
try {
minimum = inpt.nextInt();
} catch (Exception e) {
System.out.println("The value you have input is not an integer");
inpt.close();
return;
}
try {
maximum = inpt.nextInt();
} catch (Exception e) {
System.out.println("The value you have input is not an integer");
inpt.close();
return;
}
try {
divisor = inpt.nextInt();
} catch (Exception e) {
System.out.println("The value you have input is not an integer");
inpt.close();
return;
}
if (maximum < minimum || minimum < 1 || divisor > maximum)
{
System.out.println("Error, empty sequence");
}
else if (maximum < -9 || maximum > 200 || minimum < -9 || minimum > 200 || divisor < -9 || divisor > 200)
{
System.out.println("Error, bounds exception");
}
else if (maximum > 0 && maximum < 201 && minimum > 0 && minimum < 201 && divisor > 0 && divisor < 201)
{
System.out.println("Here is your sequence:");
SeqGen x = new SeqGen (minimum, maximum, divisor);
while(x.hasNextValue()){
System.out.println(x.getNextValue());}
}
}
else if (userInpt.equalsIgnoreCase("end"))
{
System.out.println("Program Terminated Normally");
inpt.close();
System.exit(0);
}
else
{
System.out.println("Error, bounds exception. System will now exit");
inpt.close();
System.exit(0);
}
}
}
}
Here is the "other class?" im not sure what the proper term is.
public class SeqGen
{
//instance vars
int minmax;
int max;
int maxdiv;
int current;
boolean hasNextValue;
boolean nextValue;
boolean isMax;
boolean isMinMax;
boolean isMaxDiv;
int getNextValue;
/**
* Constructor for objects of class SeqGen
*/
public SeqGen(int a)
{
minmax = 1;
max = a;
maxdiv = 1;
current = minmax;
isMax = true;
}
/**
* Constructor for objects of class SeqGen
*/
public SeqGen(int b, int a)
{
minmax = b;
max = a;
maxdiv = 1;
current = minmax;
isMinMax = true;
}
public SeqGen(int b, int a, int c)
{
minmax = b;
max = a;
maxdiv = c;
current = minmax;
isMaxDiv = true;
}
public boolean hasNextValue()
{
if (current <= max) {return true; }
else {return false;}
}
/**
* Computes math based upon user entered commands
* @return correct computation (int)
*/
public int getNextValue()
{
while (current < max)
{
if (current%maxdiv == 0)
{
return current++;
}
else
{
current++;
}
}
return current++;
}
}
