Develop Reference

Which unit of measurement is returned by the PDFBox's getXDirAdj() method

I am using the PDFBox to extract the character coordinates from the read PDF. However, I can't identify the unit of measurement of the value returned by the getXDirAdj () and getYDirAdj () methods?
#Override
protected void processTextPosition(TextPosition text) {
String tChar = text.getCharacter();
System.out.println("String[" + text.getXDirAdj() + ","
+ text.getYDirAdj() + " fs=" + text.getFontSize() + " xscale="
+ text.getXScale() + " height=" + text.getHeightDir() + " space="
+ text.getWidthOfSpace() + " width="
+ text.getWidthDirAdj() + "]" + text.getCharacter());
}

1 unit = 1/72 inch
"how to obtain the rotation of the character read": from the ExtractText.java tool:
static int getAngle(TextPosition text)
{
Matrix m = text.getTextMatrix().clone();
m.concatenate(text.getFont().getFontMatrix());
return (int) Math.round(Math.toDegrees(Math.atan2(m.getShearY(), m.getScaleY())));
}

How to drag & drop in specific position in selenium java?

I am trying to drag & drop 2 elements into my workspace but they are dropped over each other, how can i specify the position of dropping the elements?
I am using dragAndDrop() function
Actions act=new Actions(driver);
act.dragAndDrop(From, To).build().perform();
enter image description here

Using dragAndDrop() method you can perform drag and drop operations on only one location at a time. it is usually used to perform operations on web element which is capable of dropping. please find the reference http://demoqa.com/droppable/ for various types of dropable elements.
To implement drag and drop operation -
Example:
WebElement From=driver.findElement(By.xpath( <<source xpath>> ));
WebElement To=driver.findElement(By.xpath( <<destination xpath>> ));
Actions actions=new Actions(driver);
actions.dragAndDrop(From, To).build().perform();
to drag and drop another element, you need to perform above all steps again.
Hope this helps :)

Try Using below code :
public static void dragAndDropViaJQueryHelper(WebDriver driver, String dragSourceJQuerySelector, String dropTargetJQuerySelector) {
String jqueryScript = "(function( jquery ) {\r\n" +
" jquery.fn.simulateDragDrop = function(options) {\r\n" +
" return this.each(function() {\r\n" +
" new jquery.simulateDragDrop(this, options);\r\n" +
" });\r\n" +
" };\r\n" +
" jquery.simulateDragDrop = function(elem, options) {\r\n" +
" this.options = options;\r\n" +
" this.simulateEvent(elem, options);\r\n" +
" };\r\n" +
" jquery.extend(jquery.simulateDragDrop.prototype, {\r\n" +
" simulateEvent: function(elem, options) {\r\n" +
" /*Simulating drag start*/\r\n" +
" var type = 'dragstart';\r\n" +
" var event = this.createEvent(type);\r\n" +
" this.dispatchEvent(elem, type, event);\r\n" +
"\r\n" +
" /*Simulating drop*/\r\n" +
" type = 'drop';\r\n" +
" var dropEvent = this.createEvent(type, {});\r\n" +
" dropEvent.dataTransfer = event.dataTransfer;\r\n" +
" this.dispatchEvent(jquery(options.dropTarget)[0], type, dropEvent);\r\n" +
"\r\n" +
" /*Simulating drag end*/\r\n" +
" type = 'dragend';\r\n" +
" var dragEndEvent = this.createEvent(type, {});\r\n" +
" dragEndEvent.dataTransfer = event.dataTransfer;\r\n" +
" this.dispatchEvent(elem, type, dragEndEvent);\r\n" +
" },\r\n" +
" createEvent: function(type) {\r\n" +
" var event = document.createEvent(\"CustomEvent\");\r\n" +
" event.initCustomEvent(type, true, true, null);\r\n" +
" event.dataTransfer = {\r\n" +
" data: {\r\n" +
" },\r\n" +
" setData: function(type, val){\r\n" +
" this.data[type] = val;\r\n" +
" },\r\n" +
" getData: function(type){\r\n" +
" return this.data[type];\r\n" +
" }\r\n" +
" };\r\n" +
" return event;\r\n" +
" },\r\n" +
" dispatchEvent: function(elem, type, event) {\r\n" +
" if(elem.dispatchEvent) {\r\n" +
" elem.dispatchEvent(event);\r\n" +
" }else if( elem.fireEvent ) {\r\n" +
" elem.fireEvent(\"on\"+type, event);\r\n" +
" }\r\n" +
" }\r\n" +
" });\r\n" +
"})(jQuery);";
((JavascriptExecutor) driver).executeScript(jqueryScript);
String dragAndDropScript = "jQuery('" + dragSourceJQuerySelector + "').simulateDragDrop({ dropTarget: '" + dropTargetJQuerySelector + "'});";
((JavascriptExecutor) driver).executeScript(dragAndDropScript);
}
Just pass css or xpath selectors in parameters.
Hope that helps you.
If that does not help you I can help you out with some other solutions also.

Is there any possibility to get the currentStockLevel from this method?

I need the currentStockLevel for another void Method in java, is there any possibility to get it?
I think no, because of void right?
public void receive (int currentStock)
{
String outLine;
if (currentStockLevel > 0)
outLine = productCode;
{
outLine = ". Current Stock: " + currentStockLevel;
outLine += " Current Stock changed from " + currentStockLevel;
currentStockLevel += currentStock;
outLine += " to " + currentStockLevel;
int storeCost = wholeSalePrice * currentStockLevel;
System.out.println (productCode + ":" + " Received " + currentStockLevel + "." + " Store Cost " + "$" + storeCost + "." + " New stock level: " + currentStockLevel);
}

Storing part of method as another method?

Basically, I have code that uses the same few lines in different scenarios, and it makes the code a bit messy (especially since I probably overcomplicated what I made, but that's another issue). What I wanted to do is store that piece of code as another function and calling it in the longer one. WHich should work as far as I know, except, the longer function has variables that aren't set in the shorter one, and if they were, I'm pretty sure it would change the final result of the function.
Here is the longer code:
public static void combat(Character a,Character b){
int battleturn = 1;
int maxTurns=20;
int draw1 = 0;
//stop after 20 turns, or stop when one player has 0 HP.
while (a.health > 0 && b.health > 0 && maxTurns > 0){
/* run a round of combat*/
if (b.health < 0.25 * b.maxHealth){
if (b.getFlee(a)){
System.out.println(">>>>>>>>>>The enemy has fled successfully<<<<<<<<<<");
break;
}else{
System.out.println("Battle turn " + battleturn + ", <attack> or <flee>?");
Scanner input = new
Scanner(System.in);
String move = input.next();
while(!move.equals("attack") && !move.equals("flee")){
System.out.println("Error: Please input <attack> or <flee>.");
input = new Scanner(System.in);
move = input.next();
}
if (move.equals("attack")){
System.out.println(a.name + " dealt " + a.combatRound(b) + " damage to " + b.name + "." + " Enemy has "
+ b.getHealth() + "/" + b.getMaxHealth() + " health.");
System.out.println(b.name + " dealt " + b.combatRound(a) + " damage to " + a.name + "." + " You have " +
a.getHealth() + "/" + a.getMaxHealth() + " health");
maxTurns--;
battleturn++;
}else if(move.equals("flee")){
if (a.getFlee(b)){
draw1++;
System.out.println(">>>>>>>>>>You have fled!<<<<<<<<<<");
break;
}else{
System.out.println(a.name + " dealt " + a.combatRound(b) + " damage to " + b.name + "." + " Enemy has " +
b.getHealth() + "/" + b.getMaxHealth() + " health.");
System.out.println(b.name + " dealt " + b.combatRound(a) + " damage to " + a.name + "." + " You have " +
a.getHealth() + "/" + a.getMaxHealth() + " health");
maxTurns--;
battleturn++;
}
}
}
}else{
System.out.println("Battle turn " + battleturn + ", <attack> or <flee>?");
Scanner input = new
Scanner(System.in);
String move = input.next();
while(!move.equals("attack") && !move.equals("flee")){
System.out.println("Error: Please input <attack> or <flee>.");
input = new Scanner(System.in);
move = input.next();
}
if (move.equals("attack")){
System.out.println(a.name + " dealt " + a.combatRound(b) + " damage to " + b.name+ "." + " Enemy has " +
b.getHealth() + "/" + b.getMaxHealth() + "health.");
System.out.println(b.name + " dealt " + b.combatRound(a) + " damage to " + a.name + "." + " You have " +
a.getHealth() + "/" + a.getMaxHealth() + " health");
maxTurns--;
battleturn++;
}else if(move.equals("flee")){
if (a.getFlee(b)){
draw1++;
System.out.println(">>>>>>>>>>You have fled!<<<<<<<<<<");
break;
}else{
System.out.println(a.name + " dealt " + a.combatRound(b) + " damage to " + b.name+ "." + " Enemy has " +
b.getHealth() + "/" + b.getMaxHealth() + " health.");
System.out.println(b.name + " dealt " + b.combatRound(a) + " damage to " + a.name + "." + " You have " +
a.getHealth() + "/" + a.getMaxHealth() + " health");
maxTurns--;
battleturn++;
}
}
}
}
}
As you can see there is a part of code that is repeated, and that is.
System.out.println("Battle turn " + battleturn + ", <attack> or <flee>?");
Scanner input = new
Scanner(System.in);
String move = input.next();
while(!move.equals("attack") && !move.equals("flee")){
System.out.println("Error: Please input <attack> or <flee>.");
input = new Scanner(System.in);
move = input.next();
}
if (move.equals("attack")){
System.out.println(a.name + " dealt " + a.combatRound(b) + " damage to " + b.name + "." + " Enemy has "
+ b.getHealth() + "/" + b.getMaxHealth() + " health.");
System.out.println(b.name + " dealt " + b.combatRound(a) + " damage to " + a.name + "." + " You have " +
a.getHealth() + "/" + a.getMaxHealth() + " health");
maxTurns--;
battleturn++;
}else if(move.equals("flee")){
if (a.getFlee(b)){
draw1++;
System.out.println(">>>>>>>>>>You have fled!<<<<<<<<<<");
break;
}else{
System.out.println(a.name + " dealt " + a.combatRound(b) + " damage to " + b.name + "." + " Enemy has " +
b.getHealth() + "/" + b.getMaxHealth() + " health.");
System.out.println(b.name + " dealt " + b.combatRound(a) + " damage to " + a.name + "." + " You have " +
a.getHealth() + "/" + a.getMaxHealth() + " health");
maxTurns--;
battleturn++;
}
}
}
It won't compile if I set that chunk of code as a method, because it doesn't have the variables battleturn, maxturns, draw1, but if I put them in there, the amount of battle turns messes up.
Any ideas?

Java applications should be modular: each class fulfilling its own function, each method generally performing a single operation.
In a method you can use either class variables or its own local variables.
If you need several methods work with the same data, it should either be part of a class (instance and/or static variables) or passed to each method as parameters.
Make sure that you do not define class variables in a method. This will create local variables that will shadow class variables.

This might help you accomplish what you're trying to do.
private static void reportDamage(Character a,
Character b) {
System.out.println(a.name + " dealt "
+ a.combatRound(b) + " damage to " + b.name
+ "." + " Enemy has " + b.getHealth() + "/"
+ b.getMaxHealth() + " health.");
}
I suggest changing your combat method like this.
int battleturn = 0;
int maxTurns = 20;
// stop after 20 turns, or stop when one player has 0
// HP.
Scanner input = new Scanner(System.in);
try {
while (a.health > 0 && b.health > 0
&& battleturn < maxturn) {
battleturn++;
/* run a round of combat */
if (b.getFlee(a)) {
System.out.println(">>>>>>>>>>"
+ "The enemy has fled successfully"
+ "<<<<<<<<<<");
break;
} else {
System.out.println("Battle turn "
+ battleturn + ", <attack> or <flee>?");
boolean isFlee = false;
boolean isAttack = false;
String move = input.next();
for (;;) {
isAttack = "attack".equalsIgnoreCase(move);
isFlee = "flee".equalsIgnoreCase(move);
if (isFlee || isAttack) {
break;
}
System.out.println("Error: "
+ "Please input <attack> or <flee>.");
move = input.next();
}
if (isAttack) {
reportDamage(a, b);
reportDamage(b, a);
} else { // isFlee
if (a.getFlee(b)) {
System.out.println(">>>>>>>>>>"
+ "You have fled successfully"
+ "<<<<<<<<<<");
break;
} else {
// b is fleeing.
// reportDamage(a, b);
reportDamage(b, a);
}
}
}
}
} finally {
input.close();
}

in Java, can I keep tracking all the value in a switch statement for each case?

I am just starting the learn Java, I need to use a switch statement, but I need to keep track of all the value of calculation for each case and then need to add it up. how can I do it?
and here is my code for now
switch(productNo)
{
case 1:
lineAmount1 = quantity * product1;
orderAmount = +lineAmount1;
textArea.append(productNo +"\t"
+ quantity + "\t"
+ "$" + lineAmount1 +"\t"
+ "$" + orderAmount + "\n" );
break;
case 2:
lineAmount2 = quantity * product2;
orderAmount = + lineAmount2;
textArea.append(productNo +"\t"
+ quantity + "\t"
+ "$" + lineAmount2 +"\t"
+ "$" + orderAmount + "\n" );
break;
case 3:
lineAmount3 = quantity * product3;
orderAmount = +lineAmount3;
textArea.append(productNo +"\t"
+ quantity + "\t"
+ "$" + lineAmount3 +"\t"
+ "$" + orderAmount + "\n" );
break;
case 4:
lineAmount4 = quantity * product4;
orderAmount = +lineAmount4;
textArea.append(productNo +"\t"
+ quantity + "\t"
+ "$" + lineAmount4 +"\t"
+ "$" + orderAmount + "\n" );
break;
case 5:
lineAmount5 = quantity * product5;
orderAmount = +lineAmount5;
textArea.append(productNo +"\t"
+ quantity + "\t"
+ "$" + lineAmount5 +"\t"
+ "$" + orderAmount);
break;
}

Instead of using switch-case you can do the same in a loop as you are not doing anything different in the cases -
int lineAmount = 0;
int orderAmount = 0;
for (int product : products) {
lineAmount = quantity * product;
orderAmount += lineAmount;
textarea.append(productNo +"\t"
+ quantity + "\t"
+ "$" + lineAmount +"\t"
+ "$" + orderAmount + "\n" );
}
This code is based on the assumption that you have a list of products within which you were calling switch case... That entire code can be replaced with this...
If you need to associate a particular product with a particular number, then you could use Enum and use that here instead inside the loop.

It's not clear from your question what you are looking for, but I'll take a guess. If you're trying to get a line total for each of five items, as well as a sum total, you could use an array for the line totals, defined somewhere before your switch statement:
double[] lineTotals = new double[5];
double orderTotal = 0;
Then you can put the values for each item in the array, remembering that indexes start at 0 instead of 1:
switch(productNo) {
case 1:
lineAmounts[0] = quantity * products[0];
orderAmount = +lineAmounts[0];
textArea.append(productNo +"\t"
+ quantity + "\t"
+ "$" + lineAmount1 +"\t"
+ "$" + orderAmount + "\n" );
break;
case 2: ... etc ...
}