ADD file via upload

MainActivity.java

@@ -0,0 +1,37 @@
+package com.example;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+
+public class MainActivity extends AppCompatActivity {
+
+    Button student,teacher;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        student = (Button) findViewById(R.id.student_button);
+        teacher = (Button) findViewById(R.id.teacher_button);
+        choose();
+    }
+    private void choose(){
+        student.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(MainActivity.this,StudentLogin.class);
+                startActivity(intent);
+            }
+        });
+        teacher.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(MainActivity.this, TeacherLogin.class);
+                startActivity(intent);
+            }
+        });
+    }
+}