PMI

//M1
package com.example.training;

import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

    private EditText editText;
    private Button button;

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

        editText = findViewById(R.id.editTextText);
        button = findViewById(R.id.button);

        editText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                String name = s.toString().trim();
                boolean isValidName = name.length() >= 3 && name.length() <= 100;
                button.setEnabled(isValidName);
            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // Retrieve the name from the EditText
                String name = editText.getText().toString().trim();

                Intent intent = new Intent(MainActivity.this, MainActivity2.class);
                // Pass the registrant's name to MainActivity2
                intent.putExtra("registrantName", name);
                startActivity(intent);
            }
        });
    }
}

//M2
package com.example.training;

import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;

public class MainActivity2 extends AppCompatActivity {

    private EditText editText;
    private EditText editText1;
    private CheckBox checkBox;
    private Button button;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        editText = findViewById(R.id.editTextText2);
        checkBox = findViewById(R.id.checkBox);
        editText1 = findViewById(R.id.editTextText3);
        button = findViewById(R.id.Button1);

        editText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                String text = s.toString().trim();
                boolean isValidSerialNumber = text.length() == 5 && text.startsWith("I") && Character.isDigit(text.charAt(1)) && text.charAt(1) != '0' && Character.isAlphabetic(text.charAt(2)) && Character.isAlphabetic(text.charAt(3)) && Character.isAlphabetic(text.charAt(4));
                checkBox.setEnabled(isValidSerialNumber);
                button.setEnabled(true);
            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });

        checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (checkBox.isChecked()) {
                    editText1.setEnabled(true);
                    checkBox.setText("Negative");
                    button.setEnabled(false);
                } else {
                    editText1.setEnabled(false);
                    checkBox.setText("Positive");
                    editText1.setText("");
                    button.setEnabled(true);
                }
            }
        });

        editText1.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                String description = s.toString().trim();
                boolean isValidDescription = description.length() >= 10 && description.length() <= 255;
                button.setEnabled(isValidDescription);
            }

            @Override
            public void afterTextChanged(Editable s) {

            }
        });

        button.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                onBackPressed();
                return false;
            }
        });

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity2.this, MainActivity3.class);

                // Retrieve the values from your EditTexts and CheckBox
                String serialNumber = editText.getText().toString().trim();
                String result = checkBox.getText().toString();
                String defectDescription = editText1.getText().toString().trim();

                // Retrieve the registrant's name from the Intent
                String registrantName = getIntent().getStringExtra("registrantName");

                // Pass all the data to MainActivity3
                intent.putExtra("registrantName", registrantName);
                intent.putExtra("serialNumber", serialNumber);
                intent.putExtra("testResult", result);
                intent.putExtra("defectDescription", defectDescription);

                startActivity(intent);
            }
        });
    }
}

//M3
package com.example.training;

import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity3 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main3);

        TextView nameTextView = findViewById(R.id.nameTextView);
        TextView serialNumberTextView = findViewById(R.id.serialNumberTextView);
        TextView testResultTextView = findViewById(R.id.testResultTextView);
        TextView descriptionTextView = findViewById(R.id.descriptionTextView);

        // Retrieve the data passed from MainActivity2
        Bundle extras = getIntent().getExtras();
        if (extras != null) {
            String registrantName = extras.getString("registrantName");
            String serialNumber = extras.getString("serialNumber");
            String testResult = extras.getString("testResult");
            String defectDescription = extras.getString("defectDescription");

            // Set the collected data in the TextViews
            nameTextView.setText("Registrant Name: " + registrantName);
            serialNumberTextView.setText("Serial Number: " + serialNumber);
            testResultTextView.setText("Test Result: " + testResult);
            descriptionTextView.setText("Defect Description: " + defectDescription);
        }

        Button backButton = findViewById(R.id.backButton);
        backButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                onBackPressed();
            }
        });
    }
}