AEL/src/Symbole.java

import static java.lang.Character.isUpperCase;

public class Symbole {
    private boolean terminal;
    private boolean epsilon;
    private String value;

    public Symbole(String value) {
        this.value = value;
        if (this.value.isEmpty()) {
            this.terminal = false;
            this.epsilon = true;
        } else {
            this.epsilon = false;
            this.terminal = !isUpperCase(this.value.charAt(0));
        }
    }

    public boolean isTerminal() {
        return terminal;
    }

    public boolean isEpsilon() {
        return epsilon;
    }

    public String getValue() {
        return value;
    }

    @Override
    public String toString() {
        return "Symbole{" +
                "terminal=" + terminal +
                ", epsilon=" + epsilon +
                ", value='" + value + '\'' +
                '}';
    }
}