Why would you want to print gridlines and row and column headings?
What will be an ideal response?
The gridlines help the reader’s eye read across a worksheet. Having gridlines and row and column headings is helpful when you print a copy of the cell formulas so that you can analyze your formulas by seeing cell boundaries and seeing the column letters and row numbers for reference.
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The Line Length application should draw a straight black line on a JFrame and calculate the length of the line. The line should begin at the coordinates where the mouse button is pressed and should stop at the point where the mouse button is released. The application should display the line’s length (that is, the distance between the two endpoints) in the Length= JTextField. Use the following formula to calculate the line’s length, where (x1 , y1 ) is the first endpoint (the coordinates where the mouse button is pressed) and (x2 , y2 ) is the second endpoint (the coordinates where the mouse button is released). To calculate the distance (or length) between the two points, use the following equation:
To draw a straight line, you need to use the drawLine method on a Graphics object. Use the following method call to draw a black line between the two points using a Graphics object reference g:
a) Copying the template to your working directory. Copy the C:Examples Tutorial21ExercisesLineLength directory to your C:SimplyJava directory.
b) Opening the template file. Open the LineLength.java file in your text editor.
c) Coding the lineLengthMousePressed method. Find the lineLengthMousePressed method, which starts at line 97. Inside the lineLengthMousePressed method, add code to clear lengthJTextField, store the x- coordinate in instance variable point1x (declared for you in the template) using the statement event.getX()and store the y- coordinate in instance variable point1y (declared for you in the tem-
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One way in which to use an existing document as the basis for a new document is to use the command ________
Fill in the blank(s) with correct word
A PivotTable is an interactive Excel report that summarizes large amounts of data, allowing you to more easily analyze it
Indicate whether the statement is true or false
Consider the class below:
``` public class Test { public static void main(String[] args) { int[] a = {99, 22, 11, 3, 11, 55, 44, 88, 2, -3}; int result = 0; for (int i = 0; i < a.length; i++) { if (a[i] > 30) result += a[i]; } System.out.printf("Result is: %d%n", result); } } ``` The output of this Java program will be: a. Result is: 280. b. Result is: 286. c. Result is: 154. d. Result is: 332.