With lots of help, I have gotten this android class activity down to only one error. Eclipse ask me to add ")" ,"}", and ";" why though?

package com.android.drinksonme;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Screen2 extends Activity {

    // Declare our Views, so we can access them later
    private EditText etUsername;
    private EditText etPassword;
    private Button btnLogin;
    private Button btnSignUp;
    private TextView lblResult;

    @Override
    publi开发者_运维知识库c void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        // Get the EditText and Button References
                etUsername = (EditText)findViewById(R.id.username);
                etPassword = (EditText)findViewById(R.id.password);
                btnLogin = (Button)findViewById(R.id.login_button);
                btnSignUp = (Button)findViewById(R.id.signup_button);
                lblResult = (TextView)findViewById(R.id.result);

                       btnLogin.setOnClickListener(new OnClickListener () {  
                           public void onClick(View v){
                            final String username = etUsername.getText().toString();
                            final String password = etPassword.getText().toString();

                           if(username.equals("test") && password.equals("test")){
                               Intent i = new Intent(Screen2.this, DrinksTwitter.class);
                               startActivity(i);} 
                           else
                               lblResult.setText("Invalid username or password."); } 

                         /*  final Intent k = new Intent(Screen2.this, SignUp.class);
                           btnSignUp.setOnClickListener(new OnClickListener() {
                               public void onClick(View v) { 
                                   startActivity(k);
                               }*/ 
                           }
                       );
                    }                   
                   }

One compile error is meaningless. If you fix that error, it could be hiding hundreds.

But you're missing a curly brace. Go through and make sure all your curly braces are matched correctly.

Edit:

To your updated code, now your

String username = etUsername.getText().toString();
String password = etPassword.getText().toString();

are being defined when you create the click listener. ie before oncreate is finished and before the user can possibly enter anything.

You have:

(new OnClickListener () {
    if( blah blah

It must be something like:

(new OnClickListener () {
    public void onClick(View v){
        if( blah blah
    }
});

With regards to your new error... what about this:

               btnLogin.setOnClickListener(new OnClickListener () { 
                   public void onClick(View v){
                       String username = etUsername.getText().toString();
                       String password = etPassword.getText().toString();
                       if(username.equals("test") && password.equals("test")){
                           Intent i = new Intent(Screen2.this, DrinksTwitter.class);
                           startActivity(i);
                       } 
                       else
                           lblResult.setText("Invalid username or password.");
                       } 
                   }
               );

This seems to work for me:

public class LoginActivity extends Activity {

private EditText UserName;
private EditText Password;
private Button login;


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    login = (Button)findViewById(R.id.login);
    UserName = (EditText)findViewById(R.id.username);
    Password = (EditText)findViewById(R.id.password);
    login.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            String uName = UserName.getText().toString();
            String pWord = Password.getText().toString();
            if(uName.equals("test") && pWord.equals("test"))
            {
                Toast.makeText(getBaseContext(), "Yup", Toast.LENGTH_SHORT).show();
            }

        }
    }
    );


}

}