Math_trainer_game_app

#This is a simple math brain trainer implemented in Java and build using Android studio. #The below code is to be written in MainActivity.java file, run this to play simple math additions game package com.rharipriya.math_trainer;

import android.os.CountDownTimer; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.text.Layout; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.GridLayout; import android.widget.TextView;

import java.util.Random;

public class MainActivity extends AppCompatActivity { TextView timerTextview; TextView question; TextView marks; TextView result; Button op1; Button op2; Button op3; Button op4; boolean timerdone=false; int total; int crct;

Random rand=new Random();
int x=rand.nextInt(30);
int y=rand.nextInt(30);
int answer=x+y;
int ansbutton=rand.nextInt(4);

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    timerTextview=(TextView)findViewById(R.id.timerTextview);
    question =(TextView)findViewById(R.id.question);
    marks =(TextView)findViewById(R.id.marks);
    result=(TextView)findViewById(R.id.result);
    op1=(Button)findViewById(R.id.op1);
    op2=(Button)findViewById(R.id.op2);
    op3=(Button)findViewById(R.id.op3);
    op4=(Button)findViewById(R.id.op4);

    question.setText(Integer.toString(x)+"+"+Integer.toString(y));

    timerTextview.setVisibility(View.GONE);
    question.setVisibility(View.GONE);
    marks.setVisibility(View.GONE);
    result.setVisibility(View.GONE);
    op1.setVisibility(View.GONE);
    op2.setVisibility(View.GONE);
    op3.setVisibility(View.GONE);
    op4.setVisibility(View.GONE);

    if(ansbutton==0||ansbutton==1) {
        op1.setText(Integer.toString(answer));
        op2.setText(Integer.toString(rand.nextInt(30)));
        op3.setText(Integer.toString(rand.nextInt(30)));
        op4.setText(Integer.toString(rand.nextInt(30)));
    }
    else if(ansbutton==2) {
        op1.setText(Integer.toString(rand.nextInt(30)));
        op2.setText(Integer.toString(answer));
        op3.setText(Integer.toString(rand.nextInt(30)));
        op4.setText(Integer.toString(rand.nextInt(30)));
    }
    else if(ansbutton==3) {
        op1.setText(Integer.toString(rand.nextInt(30)));
        op2.setText(Integer.toString(rand.nextInt(30)));
        op3.setText(Integer.toString(answer));
        op4.setText(Integer.toString(rand.nextInt(30)));
    }
    else if(ansbutton==4) {
        op1.setText(Integer.toString(rand.nextInt(30)));
        op2.setText(Integer.toString(rand.nextInt(30)));
        op3.setText(Integer.toString(answer));
        op4.setText(Integer.toString(answer));
    }


}
public void goFunction(View view){
    Button goButton=(Button)findViewById(R.id.goButton);
    goButton.setVisibility(View.GONE);
    timerTextview=(TextView)findViewById(R.id.timerTextview);
    question =(TextView)findViewById(R.id.question);
    marks =(TextView)findViewById(R.id.marks);
    result=(TextView)findViewById(R.id.result);
    op1=(Button)findViewById(R.id.op1);
    op2=(Button)findViewById(R.id.op2);
    op3=(Button)findViewById(R.id.op3);
    op4=(Button)findViewById(R.id.op4);


    timerTextview.setVisibility(View.VISIBLE);
    question.setVisibility(View.VISIBLE);
    marks.setVisibility(View.VISIBLE);
    result.setVisibility(View.VISIBLE);
    op1.setVisibility(View.VISIBLE);
    op2.setVisibility(View.VISIBLE);
    op3.setVisibility(View.VISIBLE);
    op4.setVisibility(View.VISIBLE);


    new CountDownTimer(10000,1000){
        public void onTick(long millisecondsuntildone)
        {
            //counting down every second
            //Log.i("seconds left:",String.valueOf(millisecondsuntildone/1000));
            /*if((millisecondsuntildone/1000)==3)
                generateq();*/
            if((millisecondsuntildone/1000)>9)
            timerTextview.setText("0:"+String.valueOf(millisecondsuntildone/1000));
            else
                timerTextview.setText("0:0"+String.valueOf(millisecondsuntildone/1000));

        }
        public void onFinish()
        {
            //after 10secs
            Log.i("hiis","huud");
            timerdone=true;
        }
    }.start();

}
public void eval1(View view){
    if(!timerdone){
        op1=(Button)findViewById(R.id.op1);
        String userans= (String) op1.getText();
        int ua=Integer.parseInt(userans);
        result=(TextView)findViewById(R.id.result);
        if(ua==answer){
            result.setText("You are right!");
            crct++;
        }
        else
            result.setText("Try again!");
        total++;
        marks.setText(Integer.toString(crct)+"/"+Integer.toString(total));
        x=rand.nextInt(30);
        y=rand.nextInt(30);
        answer=x+y;

        question =(TextView)findViewById(R.id.question);
        marks =(TextView)findViewById(R.id.marks);
        op1=(Button)findViewById(R.id.op1);
        op2=(Button)findViewById(R.id.op2);
        op3=(Button)findViewById(R.id.op3);
        op4=(Button)findViewById(R.id.op4);

        question.setText(Integer.toString(x)+"+"+Integer.toString(y));

        if(ansbutton==0||ansbutton==1) {
            op1.setText(Integer.toString(answer));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(rand.nextInt(30)));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==2) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(answer));
            op3.setText(Integer.toString(rand.nextInt(30)));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==3) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(answer));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==4) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(answer));
            op4.setText(Integer.toString(answer));
        }
    }
    else {result.setText("Times up!");
        marks.setText(Integer.toString(crct)+"/"+Integer.toString(total));}
}
public void eval2(View view){
    if(!timerdone){
        op2=(Button)findViewById(R.id.op2);
        String userans= (String) op2.getText();
        int ua=Integer.parseInt(userans);
        result=(TextView)findViewById(R.id.result);
        if(ua==answer){
            result.setText("You are right!");
            crct++;
        }
        else
            result.setText("Try again!");
        total++;
        marks.setText(Integer.toString(crct)+"/"+Integer.toString(total));
        x=rand.nextInt(30);
        y=rand.nextInt(30);
        answer=x+y;

        question =(TextView)findViewById(R.id.question);
        marks =(TextView)findViewById(R.id.marks);
        op1=(Button)findViewById(R.id.op1);
        op2=(Button)findViewById(R.id.op2);
        op3=(Button)findViewById(R.id.op3);
        op4=(Button)findViewById(R.id.op4);

        question.setText(Integer.toString(x)+"+"+Integer.toString(y));

        if(ansbutton==0||ansbutton==1) {
            op1.setText(Integer.toString(answer));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(rand.nextInt(30)));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==2) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(answer));
            op3.setText(Integer.toString(rand.nextInt(30)));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==3) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(answer));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==4) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(answer));
            op4.setText(Integer.toString(answer));
        }
    }
    else {
        result.setText("Times up!");
        marks.setText(Integer.toString(crct) + "/" + Integer.toString(total));
    }
}
public void eval3(View view){
    if(!timerdone){
        op3=(Button)findViewById(R.id.op3);
        String userans= (String) op3.getText();
        int ua=Integer.parseInt(userans);
        result=(TextView)findViewById(R.id.result);
        if(ua==answer){
            crct++;
            result.setText("You are right!");
        }
        else
            result.setText("Try again!");
        total++;
        marks.setText(Integer.toString(crct)+"/"+Integer.toString(total));
        x=rand.nextInt(30);
        y=rand.nextInt(30);
        answer=x+y;

        question =(TextView)findViewById(R.id.question);
        marks =(TextView)findViewById(R.id.marks);
        result=(TextView)findViewById(R.id.result);
        op1=(Button)findViewById(R.id.op1);
        op2=(Button)findViewById(R.id.op2);
        op3=(Button)findViewById(R.id.op3);
        op4=(Button)findViewById(R.id.op4);

        question.setText(Integer.toString(x)+"+"+Integer.toString(y));

        if(ansbutton==0||ansbutton==1) {
            op1.setText(Integer.toString(answer));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(rand.nextInt(30)));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==2) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(answer));
            op3.setText(Integer.toString(rand.nextInt(30)));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==3) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(answer));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==4) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(answer));
            op4.setText(Integer.toString(answer));
        }
    }
    else {
        result.setText("Times up!");
        marks.setText(Integer.toString(crct) + "/" + Integer.toString(total));
    }

}
public void eval4(View view){
    if(!timerdone){
        op4=(Button)findViewById(R.id.op4);
        String userans= (String) op4.getText();
        int ua=Integer.parseInt(userans);
        result=(TextView)findViewById(R.id.result);
        if(ua==answer){
            crct++;
            result.setText("You are right!");
        }
        else
            result.setText("Try again!");
        total++;
        marks.setText(Integer.toString(crct)+"/"+Integer.toString(total));
        x=rand.nextInt(30);
        y=rand.nextInt(30);
        answer=x+y;

        question =(TextView)findViewById(R.id.question);
        marks =(TextView)findViewById(R.id.marks);
        result=(TextView)findViewById(R.id.result);
        op1=(Button)findViewById(R.id.op1);
        op2=(Button)findViewById(R.id.op2);
        op3=(Button)findViewById(R.id.op3);
        op4=(Button)findViewById(R.id.op4);

        question.setText(Integer.toString(x)+"+"+Integer.toString(y));

        if(ansbutton==0||ansbutton==1) {
            op1.setText(Integer.toString(answer));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(rand.nextInt(30)));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==2) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(answer));
            op3.setText(Integer.toString(rand.nextInt(30)));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==3) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(answer));
            op4.setText(Integer.toString(rand.nextInt(30)));
        }
        else if(ansbutton==4) {
            op1.setText(Integer.toString(rand.nextInt(30)));
            op2.setText(Integer.toString(rand.nextInt(30)));
            op3.setText(Integer.toString(answer));
            op4.setText(Integer.toString(answer));
        }
    }
    else {
        result.setText("Times up!");
        marks.setText(Integer.toString(crct) + "/" + Integer.toString(total));
    }
}


//public void generateq(){
   // Random rand=new Random();
   // int x=rand.nextInt(30);
   // int y=rand.nextInt(30);

// } }