This string method returns a copy of the string with all leading whitespace characters removed.a. lstripb. rstripc. removed. strip_leading

df['level'].sum() Select an answer: It will produce an empty string. It will produce the number zero. It will produce the string "HML". It will cause an error.

note: You can easily replace a portion of text within a String using the String method "replace()". For example: String svar = "raspberry jam"; svar = svar.replace("jam", "pie"); System.out.println(svar); will print out: raspberry pie A photographer is organizing a photo collection about the national parks in the US and would like to annotate the information about each of the photos into a separate set of files. Write a program that reads the name of a text file containing a list of photo file names. The program then reads the photo file names from the text file, replaces the "_photo.jpg" portion of the file names with "_info.txt", and outputs the modified file names. Assume the unchanged portion of the photo file names contains only letters and numbers, and the text file stores one photo file name per line. If the text file is empty, the program produces no output.

Write a single statement which creates a new StringBuffer object and sets its capacity to 50.

PYTHON CODE Reza Enterprises sells tickets for buses, tours, and other travel services. Because Reza frequently mistypes long ticket numbers, Reza Enterprises has asked his students to write an application that shows if a ticket is invalid. Your application/program tells the ticket agent to enter a six-digit ticket number. Ticket numbers are designed so that if you lose the last digit of the number, then divide by 7, the remainder of the division is exactly the same to the last dropped digit. This process is shown below:   Step 1: Enter the ticket number; for example 123454   Step 2: Remove the last digit, leaving 12345   Step 3: Determine the remainder when the ticket number from step 2 is divided by 7. In this case, 12345 divided by 7 leaves a remainder of 4.   Step 4: Display a message to the ticket agent indicating whether the ticket number is valid or not. If the ticket number is valid, save the number to a .txt file called “tickets.txt” and continue to loop your program asking…

bootstrap class for form control is class="form-control-file" class="input-group-text" class="form-control"

• Use a while loop • Use multiple loop controlling conditions • Use a boolean method • Use the increment operator • Extra credit: Reuse earlier code and call two methods from main Details: This assignment will be completed using the Eclipse IDE. Cut and paste your code from Eclipse into the Assignment text window. This is another password program. In this case, your code is simply going to ask for a username and password, and then check the input against four users. The program will give the user three tries to input the correct username-password combination. There will be four acceptable user-password combinations: • alpha-alpha1 • beta-beta1 • gamma-gamma1 • delta - delta1 If the user types in one of the correct username-password combinations, then the program will output: "Login successful." Here are a couple of example runs (but your code needs to work for all four user-password combinations): Username: beta Type your current password: beta1 Login successful. Username: delta Type…

Quèstion 4 Assume a string object has been defined as follows: string exam; Write a statement that reads in a string that can contain multiple words separated by blanks. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIU S Paragraph 14px Arial X次 RBC 三 === x2 市 () A Moving to another question will save this response. !!

Using one of the of a string object will allow you to determine the location of the substring that you are looking for.

A common operation performed on strings is __________, or appending one string to the end of another string. a. addition b. merging c. concatenation d. tying