Exam 8: Text Processing and Wrapper Classes

A wrapper class is a class that is "wrapped around" a primitive data type and allows you to create objects instead of variables.

Which of the following statements will display the maximum value that a double can hold?

The __________ class is the wrapper class for the char data type.

The String class's __________ method accepts a value of any primitive data type as its argument and returns a string representation of the value.

In the __________ file format, when data in a spreadsheet is exported, each row is written to a line and commas are used to separate the values in the cells.

The Character wrapper class provides numerous methods for

What will be displayed after the following code is executed? boolean matches; String str1 = "The cow jumped over the moon."; String str2 = "moon"; Matches = str1.endsWith(str1); System.out.println(matches);

Which of the following statements converts a String object variable named str to an int and stores the value in the variable x?

Trying to extract more tokens than exist from a StringTokenizer object will cause an error.

Most of the String comparison methods are case sensitive.

The term __________ is commonly used to refer to a string that is part of another string.

The __________ method returns a copy of the calling String object with all leading and trailing whitespace characters deleted.

You can concatenate String objects by using the

You may cause an off-by-one error when working with a character position within a string if you think of the first position in the string as 1.

Given the following code, how many times will the while loop be executed? StringTokenizer st = new StringTokenizer("Java programming is fun!"); While (st.hasMoreTokens()) System.out.println(st.nextToken());

Which of the following statements converts a double variable named tax to a string and stores the value in the String object named str?

What will be the value of position after the following code is executed? int position; String str = "The cow jumped over the moon."; Position = str.lastIndexOf("ov", 14);

What will be displayed after the following code is executed? String str = "RSTUVWXYZ"; System.out.println(str.charAt(5));

What will be displayed after the following statements are executed? String str = "red$green&blue#orange"; String[] tokens = str.split("[$&#]"); For (String s : tokens) System.out.print(s + " ");

What will be the value of position after the following code is executed? int position; String str = "The cow jumped over the moon."; Position = str.indexOf("ov");