package my.project;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Button;
import android.widget.TextView;
import java.lang.String;
import java.util.regex.*;

public class ComplexConverter extends Activity {
    private ComplexA complexA;
    private ComplexE complexE;
    private Pattern p;
    private Matcher m;
    private double a;

    private boolean isAlg(String str) {
        p = Pattern.compile("(\\d+)[+-]i(\\d+)",
        Pattern.UNICODE_CASE | Pattern.CASE_INSENSITIVE);
        m = p.matcher(str);

        a = Double.parseDouble(m.group(1));

        return m.matches();
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        complexA = new ComplexA();
        complexE = new ComplexE();

        final EditText edit = (EditText) findViewById(R.id.edit);
        Button button = (Button) findViewById(R.id.button);
        final TextView text = (TextView) findViewById(R.id.text);




        button.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                if (isAlg(edit.getText().toString())) {
                    text.setText(Double.toString(a));
                }
            }
        });

}