How can I concatenate my String and the int in the lines:
print('Computer is moving to ' + (i + 1));
and print("Computer is moving to " + (i + 1));
I cant figure it out because the error keeps saying "The argument type 'int' can't be assigned to the parameter type 'String'
void getComputerMove() {
int move;
// First see if there's a move O can make to win
for (int i = 0; i < boardSize; i++) {
if (_mBoard[i] != humanPlayer && _mBoard[i] != computerPlayer) {
String curr = _mBoard[i];
_mBoard[i] = computerPlayer;
if (checkWinner() == 3) {
print('Computer is moving to ' + (i + 1));
return;
} else
_mBoard[i] = curr;
}
}
// See if there's a move O can make to block X from winning
for (int i = 0; i < boardSize; i++) {
if (_mBoard[i] != humanPlayer && _mBoard[i] != computerPlayer) {
String curr = _mBoard[i]; // Save the current number
_mBoard[i] = humanPlayer;
if (checkWinner() == 2) {
_mBoard[i] = computerPlayer;
print("Computer is moving to " + (i + 1));
return;
} else
_mBoard[i] = curr;
}
}
}
With string interpolation:
print("Computer is moving to ${i + 1}");
Or just call toString():
print("Computer is moving to " + (i + 1).toString());
You can simply use .toString which will convert your integer to String :
void main(){
String str1 = 'Welcome to Matrix number ';
int n = 24;
//concatenate str1 and n
String result = str1 + n.toString();
print(result);
}
And in your case it's gonna be like this :
print("Computer is moving to " + (i + 1).toString());
I have an code issue in docusign.
In my calculation step I have created and input and output code.
When I run the template and checking the "incoming data" xml in the workflow I have an error message displayed:
<In_80_stackTrace>Exception: at ADEXS.DynamicCode.DynamicClassD_3447d8ccd49f4631b91c31df53e249e7.DynamicMethodD_dcb572b7876d400683579290c5918f06(DynamicContext _context)</In_80_stackTrace>
I don't know how to fix this that it will show only the
logError("In_80_error", "Data node //CategoryName is missing");
when no data is in the node.
Below are the details - my input code:
//In_80 - ESP_CategoryName_Description
string In_80 = "";
{
try
{
if (incomingDataRoot.SelectSingleNode("//CategoryName[node()]").InnerText == null)
{
logError("In_80_error", "Data node //CategoryName is missing");
}
else if (incomingDataRoot.SelectSingleNode("//CategoryName[node()]").InnerText != null)
{
In_80 = incomingDataRoot.SelectSingleNode("//CategoryName[node()]").InnerText;
}
}
catch (Exception e)
{
//logError("In_80_error", "Exception: Message:" + e.Message +" Inner Exception: "+ e.InnerException +" StackTrace: "+ e.StackTrace +" Source: "+ e.Source +" Data: "+ e.Data);
logError("In_80_stackTrace", "Exception: " + e.StackTrace);
}
}
Here is the output code:
//OUT_92 - ESP_CategoryName_Description
var OUT_92 = In_80;
if (In_80 == "")
{
logError("OUT_92_error", "Error reading In_80");
} else {
XmlElement elem = incomingDataRoot.OwnerDocument.CreateElement("OUT_92");
string p_category = "";
int i = 1;
foreach (char item in In_80)
{
if (Char.IsLetter(item))
{
if (i == 1)
{
p_category += item.ToString().ToUpper();
}
else
{
p_category += item.ToString().ToLower();
}
i++;
}
else
{
if (item == ' ')
{
i = 1;
}
p_category += item.ToString();
}
}
OUT_92 = p_category;
elem.InnerText = OUT_92.ToString();
elem.SetAttribute("Name", "ESP_CategoryName_Description");
incomingDataRoot.SelectSingleNode("/Root/Params/TemplateFieldData/Calculation_Results").AppendChild(elem);
}
In incoming data OUT part I'm getting
<OUT_92_error>Error reading In_80</OUT_92_error>
where I assume that its because something is wrong with the input code part?
Thank you for your help!
First time posting a question. Maybe I'm just being an idiot that's not seeing the problem, but can anyone identify what's wrong with my code below? Everything else works fine. But when the code is done compiling, it says "Error: no suitable method found for length(int)" for if (l.length(0)) and if (f.length(0)).
import java.util.Scanner;
public class Project2 {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
int salary;
double savingsRate;
double interestRate;
int employmentYears;
double retirementSavings;
System.out.println("Enter input salary savings_rate interest_rate years_employed lastname firstname");
salary = scnr.nextInt();
savingsRate = scnr.nextDouble();
interestRate = scnr.nextDouble();
employmentYears = scnr.nextInt();
String l = scnr.nextLine(); // Last Name
String f = scnr.nextLine(); // First Name
retirementSavings = employmentYears * savingsRate * salary * (1 + interestRate);
if (salary < 0) {
System.out.println("Salary is negative");
}
else if (salary > 1000000) {
System.out.println("Error: Salary " + salary + "exceeds maximum 1000000.0");
}
else {
System.out.println("Salary: " + salary);
}
if (savingsRate < 0) {
System.out.println("Savings rate is negative");
}
else if (savingsRate > 0.5) {
System.out.println("Error: Savings rate " + savingsRate + "exceeds maximum 0.5");
}
else {
System.out.println("Savings Rate:" + savingsRate);
}
if (interestRate < 0) {
System.out.println("Interest Rate is negative");
}
else if (interestRate > 0.25) {
System.out.println("Error: Interest Rate " + interestRate + "exceeds maximum 0.25");
}
else {
System.out.println("Interest Rate: " + interestRate);
}
if (employmentYears < 0) {
System.out.println("Years employed is negative!");
}
else if (employmentYears > 50) {
System.out.println("Error: Years employed " + employmentYears + "exceeds maximum 50");
}
else {
System.out.println("Years of Employment: " + employmentYears);
}
if (l.length(0)) {
System.out.println("Error: Name too short");
}
else if (l == f) {
System.out.println("Error: Last Name and First Name are the same");
}
else {
System.out.println("Last Name: " + l);
}
if (f.length(0)) {
System.out.println("Error: Name too short");
}
else {
System.out.println("First Name: " + f);
}
System.out.println("Retirement Savings: " + retirementSavings);
}
}
I think you are trying to check if the name is empty, Am I right?
you have:
1) string.length() : length() method is a final variable which is applicable for string objects. length() method returns the number of characters presents in the string.
2) array.length : length is a final variable applicable for arrays. With the help of length variable, we can obtain the size of the array.
(visit geeksforgeeks to see more).
But you don't have a String.length(int) method.
The below class is used in an array.
package com.example.ShivitoMGO;
public class RoomTable {
public String RoomName,UpDown,minmaxint;
}
Main Activity
static ArrayList <RoomTable> CountCheck = new ArrayList<>();
public void playerup(View vvv){
st_spinner = v1.findViewById(R.id.spinner);
st_reportLayout = v1.findViewById(R.id.reportlayout);
st_Leanervidimg = v1.findViewById(R.id.Linearvidcopy);
TextView roomname = v1.findViewById(R.id.action_Players1);
RoomTable roomtb = new RoomTable();
if (CountCheck.size() == 0){
//playerupdown = "up";
Toast.makeText(this, "Will notify when " + mRooms.get(position1) + " players increase #" + mRoomSize.get(position1), Toast.LENGTH_LONG).show();
String[] minmaxval = mRoomSize.get(position1).split("/");
CountCheckint = Integer.parseInt(minmaxval[0].trim());
//CountCheck = (String) mRooms.get(position1);
roomtb.RoomName = (String) mRooms.get(position1);
roomtb.minmaxint = minmaxval[0].trim();
roomtb.UpDown = "up";
Log.d("added: ", "it was added");
CountCheck.add(roomtb);
Log.d("RoomTableadd: ",roomtb.RoomName+ " " + roomtb.minmaxint +" " +roomtb.UpDown);
st_reportLayout.setVisibility(View.GONE);
Log.d("Longclickhere: ", mRoomSize.get(position1));
Log.d("RoomNameCount ", String.valueOf(CountCheck.get(0).RoomName));
}else {
int exist1 = 0;
int poss;
for (int i = 0; i < CountCheck.size(); i++) {
if (roomname.getText() == CountCheck.get(i).RoomName) {
Log.d("RoomNametxt: " , CountCheck.get(i).RoomName);
Log.d("RoomNametxt: ", (String) roomname.getText());
Toast.makeText(this, "Notification " + CountCheck.get(i).RoomName + " OFF!", Toast.LENGTH_LONG).show();
Log.d("Removed item: ", String.valueOf(CountCheck.size()));
CountCheck.remove(i);
Log.d("Removed item: ", String.valueOf(CountCheck.size()));
st_reportLayout.setVisibility(View.GONE);
exist1 = 1;
poss = i;
} else {
exist1 = 0;
}
}
if (exist1 == 0) {
Toast.makeText(this, "Will notify when " + mRooms.get(position1) + " players increase #" + mRoomSize.get(position1), Toast.LENGTH_LONG).show();
String[] minmaxval = mRoomSize.get(position1).split("/");
CountCheckint = Integer.parseInt(minmaxval[0].trim());
//CountCheck = (String) mRooms.get(position1);
roomtb.RoomName = (String) mRooms.get(position1);
roomtb.minmaxint = minmaxval[0].trim();
roomtb.UpDown = "up";
Log.d("added: ", "it was added");
CountCheck.add(roomtb);
Log.d("RoomTableadd: ", roomtb.RoomName + " " + roomtb.minmaxint + " " + roomtb.UpDown);
st_reportLayout.setVisibility(View.GONE);
}
Log.d("CountSize: ", String.valueOf(CountCheck.size()));
for (int xb = 0;xb<CountCheck.size();xb++) {
try {
Log.d("RoomNameCount ", String.valueOf(CountCheck.get(xb).RoomName));
} catch (Exception e) {
Log.d("Out of range ", String.valueOf(e));
}
}
}
}
Recycler-View
#Override
public boolean onLongClick(View v) {
// Launch your web intent
if (CountCheck.size() != 0){
Log.d("Longclickhere: ",mRoomSize.get(position));
Toast.makeText(mContext, mRoomSize.get(position), Toast.LENGTH_SHORT).show();
Toast.makeText(mContext, "Will notify when "+mRooms.get(position)+" players decrease", Toast.LENGTH_SHORT).show();
String[] minmaxval = mRoomSize.get(position).split("/");
MainActivity.CountCheckint = Integer.parseInt(minmaxval[0].trim());
} else{
//MainActivity.CountCheck = "";
Toast.makeText(mContext, "Player Decrease notification OFF", Toast.LENGTH_SHORT).show();
}
return true;
In this app the recycler view creates the "rooms" and if the room is selected the textview and 2 other values are put in to the RoomTable. these are stored and used in a service to check if ether of the other to values change. Everything works as intended unless i use the swip-to-refresh witch runs the recycler-view again. If i do not refresh and i select the same item in the recycler-view it will remove it from CountCheck . However if i run the refresh and select the same recycler-view item that i selected previously it will add it instead of removing it. This Makes no since to me because i use a for loop to Check the CountCheck.get(i).RoomName aka the textview and if the names are the same then my if statement will remove instead of add. is it somehow possible i'm ending up with 2 CountCheck Objects????? with the same name???? Please I'm out of ideas on this one. Thanks.
I dont remember why. Maybe someone can explain but i changed this line
if (roomname.getText() == CountCheck.get(i).RoomName)
To this
if (roomname.getText().equals(CountCheck.get(i).RoomName));
and that fixed the issue. please let me know the difference if you are reading this.
My app uses a countdown timer in the background in a class that extends Services. The background running service is designed to access the Sharedpreferences data of the app. During the countdown, a particular integer in the Sharedpreferences changes value and the updated value is expected to be accessed in the onFinish() call of the countdown timer. The problem now is that the Service don't read the updated valued from the Sharedpreferences but rather returns the initial value at the point the background service started.
I saw somewhere that the solution to the problem is to use
PreferenceManager.getDefaultSharedPreferences()
instead of getSharedPrefences to be able access the current SharedPreferences value. I implemented this recommendation but the problem persist.
Please somebody should help me out because trying to figure out this is taking too much of my time.
My code is here:
public class BroadcastService extends Service {
DatabaseHelperClass myDatabase = new DatabaseHelperClass(this);
private SharedPreferences defaultSharedPreferences, sharedPreferences, staffSignedIn;
private SharedPreferences.Editor staffEditor, defaultSharedPreferencesEditor;
int countSignIn;
private SimpleDateFormat simpleDateFormatII;
Long timeLeftInMiliseconds;
private final static String TAG = "BroadcastService";
public static final String COUNTDOWN_BR = "com.cenitscitech.www.etimebook.countdown_br";
Intent bi = new Intent(COUNTDOWN_BR);
CountDownTimer cdt = null;
#Override
public void onCreate() {
super.onCreate();
defaultSharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
defaultSharedPreferencesEditor = defaultSharedPreferences.edit();
sharedPreferences = getSharedPreferences("setTime", MODE_PRIVATE);
//staffSignedIn = getSharedPreferences("present", MODE_PRIVATE);
//countSignIn = staffSignedIn.getInt("max", 0);
//staffEditor = staffSignedIn.edit();
simpleDateFormatII = new SimpleDateFormat("MMM EEE dd, yyyy HH:mm");
Log.i(TAG, "Starting timer in broadcast receiver...");
Log.i(TAG, "max Count Obtained onBroadcastCreate: "+defaultSharedPreferences.getInt("max", 0));
}
#Override
public void onDestroy() {
//cdt.cancel();
Log.i(TAG, "Timer in broadcast receiver cancelled");
super.onDestroy();
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
timeLeftInMiliseconds = intent.getLongExtra("timeLeft", 0L);
cdt = new CountDownTimer(timeLeftInMiliseconds, 1000) {
#Override
public void onTick(long millisUntilFinished) {
SharedPreferences defaultShared = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
Log.i(TAG, "Countdown seconds remaining: " + millisUntilFinished / 1000);
/*bi.putExtra("countdown", millisUntilFinished);
sendBroadcast(bi);*/
}
#Override
public void onFinish() {
SharedPreferences defaultSharedPreferences2 = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
countSignIn = defaultSharedPreferences2.getInt("max", 0);
Log.i(TAG, "Timer finished");
bi.putExtra("countdown", "Timer finished");
sendBroadcast(bi);
StringBuilder phoneBuilder = new StringBuilder();
Calendar cStart = Calendar.getInstance();
cStart.set(Calendar.HOUR_OF_DAY, 0);
cStart.set(Calendar.MINUTE, 0);
cStart.set(Calendar.SECOND, 0);
Long cStartLong = cStart.getTimeInMillis();
Calendar cEnd = Calendar.getInstance();
cEnd.set(Calendar.HOUR_OF_DAY, 23);
cEnd.set(Calendar.MINUTE, 59);
cEnd.set(Calendar.SECOND, 59);
Long cEndLong = cEnd.getTimeInMillis();
String[] conditionsElements;
Log.i(TAG + " onFinish", "MAXIMUM COUNT OBTAINED: " + defaultSharedPreferences2.getInt("max", 0));
Log.i(TAG + " onFinish", "MAXIMUM COUNT OBTAINED: " + countSignIn);
if (defaultSharedPreferences2.getInt("max", 0) > 0) {
Log.i(TAG + " onFinish", "CURRENT countSignIn Value: "+countSignIn+"\n"+" max Value: "+defaultSharedPreferences2.getInt("max", 0));
conditionsElements = new String[defaultSharedPreferences2.getInt("max", 0)];
for (int i = 1; i <= defaultSharedPreferences2.getInt("max", 0); i++) {
conditionsElements[i - 1] = defaultSharedPreferences2.getString(Integer.toString(i), "NoElement");
Log.i(TAG + " onFinish", "conditionsElement[" + (i - 1) + "] = " + defaultSharedPreferences2.getString(Integer.toString(i), "NoElement"));
if (i < defaultSharedPreferences2.getInt("max", 0)) {
phoneBuilder.append("MOBILE_NUMBER = ? OR ");
Log.i(TAG + " onFinish", "phoneBuilder[" + (i - 1) + "]: " + phoneBuilder);
//phoneBuilder.append(staffSignedIn.getString(Integer.toString(i), "NoStaff")+"_");
} else if (i == defaultSharedPreferences2.getInt("max", 0)) {
//phoneBuilder.append(staffSignedIn.getString(Integer.toString(i), "NoStaff"));
phoneBuilder.append("MOBILE_NUMBER = ?");
Log.i(TAG + " onFinish", "phoneBuilder[final]: " + phoneBuilder);
}
}
} else {
Log.i(TAG + " onFinishInsideElse", "CURRENT countSignIn Value: "+countSignIn+"\n"+" max Value: "+defaultSharedPreferences2.getInt("max", 0));
conditionsElements = new String[1];
conditionsElements[0] = "NoElement";
phoneBuilder.append("MOBILE_NUMBER = ?");
}
Cursor cursor = myDatabase.queryAbsentStaff(SURNAME_COLUMN + ", " + FIRST_NAME_COLUMN + ", " + MIDDLE_NAME_COLUMN + ", " + MOBILE_NUMBER_COLUMN + ", " + DATE_COLUMN,
SURNAME_COLUMN + ", " + FIRST_NAME_COLUMN + ", " + MIDDLE_NAME_COLUMN + ", " + MOBILE_NUMBER_COLUMN + ", " + DATE_COLUMN,
phoneBuilder.toString(),
conditionsElements);
Log.i(TAG + " onFinish", "\n" + "SET TIMES:" + "\n" + cStartLong + "\n" + cEndLong + "\n" + "RETURNED ROWS:" + "\n" + cursor.getCount());
/*staffEditor.putInt("max", 0);
staffEditor.apply();
for(int i=0; i<staffSignedIn.getInt("totalStaff", 100); i++){
staffEditor.putString(Integer.toString((i+1)), "empty").apply();
}*/
if(cursor.moveToFirst()){
for (int i = 0; i < cursor.getCount(); i++) {
if(myDatabase.insertTimeBookRecord(cursor.getString(cursor.getColumnIndex(SURNAME_COLUMN)), cursor.getString(cursor.getColumnIndex(FIRST_NAME_COLUMN)),
cursor.getString(cursor.getColumnIndex(MIDDLE_NAME_COLUMN)), cursor.getString(cursor.getColumnIndex(MOBILE_NUMBER_COLUMN)),
"ABSENT", Long.toString(System.currentTimeMillis()), 1000000L, "NO", "0000", System.currentTimeMillis(), "notSynced", "notSynced")){
cursor.moveToNext();
if(cursor.isAfterLast()){
cursor.close();
}
}else{
cursor.moveToNext();
if(cursor.isAfterLast()){
cursor.close();
}
}
}
}
Log.i(TAG +" onFinish: ", "max val reset: "+defaultSharedPreferences2.getInt("max", 0));