LogicGates/eu.heili/DigitalInput.java

public class DigitalInput {
    private boolean value = false;
    private LogicGate gt = null;

    public DigitalInput(final boolean value) {
        setValue(value);
    }

    public DigitalInput(final LogicGate gate) {
        setValue(gate);
    }

    public DigitalInput(final int value) {
        setValue(value);
    }

    public DigitalInput(final char value) {
        setValue(value);
    }

    /**
     * default value is false!
     */
    public DigitalInput() {
    }

    public boolean getValue() {
        if (gt != null) {
            return gt.getOutput(); // validate gate here
        } else {
            return value;
        }
    }

    public void setValue(boolean value) {
        this.value = value;
    }

    public void setValue(LogicGate gate) {
        this.gt = gate;
    }

    public void setValue(int value) {
        this.value = value > 0;
    }

    public void setValue(char value) {
        this.value = value == 'H';
    }
}