第二阶段冲刺5

老师的功能
package com.example.shazidouhuiapp.activity;
 
import android.os.Bundle;
import android.widget.Toast;
 
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
 
import com.example.shazidouhuiapp.R;
 
public class teacherinterface extends AppCompatActivity {
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.teacher);
        Toast.makeText(this, "来到了老师界面", Toast.LENGTH_SHORT).show();
    }
}