mom-pda/app/src/main/java/com/example/haiwei_mom/ClassItemActivity.java

package com.example.haiwei_mom;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

public class ClassItemActivity extends AppCompatActivity {

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