Add new file

UpdateRefreshments.java

+package com.example.carrentals;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
+import android.widget.Spinner;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import static android.widget.Toast.*;
+
+public class UpdateRefreshments extends AppCompatActivity implements AdapterView.OnItemSelectedListener {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_update_refreshments);
+        Spinner aSpinner = findViewById(R.id.aSpinner);
+        aSpinner.setOnItemSelectedListener(this);
+
+        Spinner sweetSpinner = findViewById(R.id.sweetSpinner);
+        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
+                this,
+                R.array.Spinner_items,
+                android.R.layout.simple_spinner_item
+        );
+        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        sweetSpinner.setAdapter(adapter);
+        sweetSpinner.setOnItemSelectedListener(this);
+    }
+
+    @Override
+    public void onItemSelected(AdapterView<?> adapterView, View view, int position, long id) {
+        makeText(this, adapterView.getSelectedItem().toString(), Toast.LENGTH_SHORT).show();
+    }
+
+
+    @Override
+    public void onNothingSelected(AdapterView<?> parent) {
+
+    }
+
+
+        public void DiscountPercent(View v) {
+            Intent intent = new Intent(this, DiscountPercent.class);
+            startActivity(intent);
+
+
+        }
+    }
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