夏夜醍醐

1. MainActivity

 

public void gotoSecondActivity(View v){
    Intent it = new Intent(this, SecondActivity.class);
startActivity(it);
}

public void gotoThirdActivity(View v){
    Intent it = new Intent(this, ThirdActivity.class);
startActivity(it);
}

 

2. SecondActivity

 

public void goBack(View v){
    finish();
}

 

3. ThirdActivity

 

public void goBack(View v){
    finish();
}