Android

image.java

        mImageView = (ImageView) findViewById(R.id.imageView1);
        mImageView.setImageResource(R.drawable.camera);

iterate_table.java

        //for tableview function
        TableLayout table = (TableLayout)findViewById(R.id.displayInputTable);

        TableRow row = new TableRow(this);
        row.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT));


        TableRow row2 = new TableRow(this);
        row2.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT));

        TextView tv = new TextView(this);
        tv.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT));
        tv.setText("New Entry");

        TextView tv2 = new TextView(this);
        tv2.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT));
        tv2.setText("New Entry Test 2");

            for (String s : title){
                System.out.println(s);

                TableRow row3 = new TableRow(this);
                row3.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT));

                TextView tv3 = new TextView(this);
                tv3.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT));
                tv3.setText(s);

                row3.addView(tv3);
                table.addView(row3);
            }

        row.addView(tv);
//        row.addView(tv2);
        row2.addView(tv2);
        table.addView(row);
        table.addView(row2);

navigating_page.java

// main page
        Button addBtn = (Button) findViewById(R.id.addButton);
        addBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                EditText retrievedText = (EditText) findViewById(R.id.textfield1);
                String message = retrievedText.getText().toString(); // get the text from the text field 
                TextView label2 = (TextView) findViewById(R.id.textView1);
                label2.setText(message); 

                User newUser = new User(message); // test create object
                System.out.println("user name is :");
                System.out.println(newUser.mFirstName); 
                Intent secondPage = new Intent(MainActivity.this, displayInput.class); //instantiate the second page
                secondPage.putExtra("name", message); //this is to get the data from the text field and pushing the data to the second page
                startActivity(secondPage); // move to the second page
            }
        });


//second page


// paste this under class declaration , for home button action 
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                onBackPressed();
                return true;
        }
        return super.onOptionsItemSelected(item);
    }


// paste this on "protected void onCreate(Bundle savedInstanceState)"
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
//        getSupportActionBar().setHomeButtonEnabled(true);

        Intent  previousPage = getIntent();
        String receivedParams = previousPage.getStringExtra("name");
        Button addBtn = (Button) findViewById(R.id.backButton);
        addBtn.setText(receivedParams);
        addBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });

radio_group.java

        radioGroup1 = (RadioGroup) findViewById(R.id.radioGroup1);
        btnDisplay = (Button) findViewById(R.id.button2);
        btnDisplay.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                int selectedId=radioGroup1.getCheckedRadioButtonId();
                radioButton=(RadioButton)findViewById(selectedId);
                System.out.println(radioButton.getId());

//                Toast toast = Toast.makeText(getApplicationContext(),
//                        "This is a message displayed in a Toast",
//                        Toast.LENGTH_SHORT);
//
//                toast.show();

                Toast.makeText(MainActivity.this,radioButton.getText(),Toast.LENGTH_SHORT).show();

            }
        });

switch.java

        Switch toggle = (Switch) findViewById(R.id.switch1);
        toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (isChecked) {
                    // The toggle is enabled
                    System.out.println("switch on");
                } else {
                    // The toggle is disabled
                    System.out.println("switch off");
                }
            }
        });