Which of the following is not true about the null-conditional operator?

Which of the following is a way to open the Code Editor window for a form?

If you code a break statement in a loop, it will cause the application

Variables named according to Pascal notation

Code example 7-1private void btnCalculate_Click(object sender, System.EventArgs e){    decimal weightInPounds = 0m;    try    {        weightInPounds = Convert.ToDecimal(txtPounds.Text);        if (weightInPounds > 0)        {            decimal weightInKilos = weightInPounds / 2.2m;            lblKilos.Text = weightInKilos.ToString(“f2”);        }        else        {            MessageBox.Show(“Weight must be greater than 0.”, “Entry error”);           txtPounds.Focus();        }    }    catch(FormatException)    {        MessageBox.Show(“Weight must be numeric.”, “Entry error”);        txtPounds.Focus();    }} (Refer to code example 7-1.) If the user enters -1 in the text box and clicks the Calculate button, what does the code do?

Given the following Random object named number, which of the following statements returns a double value that is greater than or equal to 0.0 and less than 1.0?Random number = new Random();

What happens when this statement is executed? Automobile car = new Automobile(1);

Code Example 4-1decimal a = 2.5m;decimal b = 4.0m;decimal c = 12.7m;int i = 4;int j = 8;int k = 17; (Refer to Code Example 4-1.) What is the value of x after the following statement is executed?decimal x = a + b;

Code example 7-1private void btnCalculate_Click(object sender, System.EventArgs e){    decimal weightInPounds = 0m;    try    {        weightInPounds = Convert.ToDecimal(txtPounds.Text);        if (weightInPounds > 0)        {            decimal weightInKilos = weightInPounds / 2.2m;            lblKilos.Text = weightInKilos.ToString(“f2”);        }        else        {            MessageBox.Show(“Weight must be greater than 0.”, “Entry error”);           txtPounds.Focus();        }    }    catch(FormatException)    {        MessageBox.Show(“Weight must be numeric.”, “Entry error”);        txtPounds.Focus();    }} (Refer to code example 7-1.) If the user enters “200#” in the text box and clicks the Calculate button, what does the code do?

What will the cboNumbers combo box contain if the following method is called twice?private void Fill(){    for (int i = 1; i < 5; i++)    {        cboNumbers.Items.Clear();        cboNumbers.Items.Add(i);    }}