Exam 10: Text Processing and More About Wrapper Classes

What is the value of str after the following code has been executed? String str; String sourceStr = "Hey diddle,diddle,the cat and the fiddle"; Str = sourceStr.substring(12,17);

The String class's valueOf()method accepts a value of any primitive data type as an argument and returns a string representation of the value.

What does the following statement do? Double number = new Double(8.8);

To convert the string,str = "285.74" to a double,use the following statement.

The following statement correctly creates a StringBuilder object. StringBuilder str = "Caesar Salad";

You cannot assign a value to a wrapper class object.

In a string that contains a series of words or other items of data separated by spaces or other characters,the programming term for the data items is

What will be printed after the following code is executed? String str = "abc456"; Int m = 0; While ( m < 6 ) { If (!Character.isLetter(str.charAt(m))) System.out.print( Character.toUpperCase(str.charAt(m))); M++; }

The String class's valueOf()method accepts a string representation as an argument and returns its equivalent integer value.

If a string has more than one character used as a delimiter,we must write a loop to determine the tokens,one for each delimiter character.

For the following code,how many times would the while loop execute? StringTokenizer strToken = New StringTokenizer("Cars,trucks,and SUVs " + "are all types of automobiles."); While (strToken.hasMoreTokens()) { System.out.println(strToken.nextToken()); }

The Character wrapper class provides numerous methods for

StringBuilder objects are immutable.

When using the StringBuilder class's insert method,you can insert

The StringBuilder constructor used in the following statement will... StringBuilder str = new StringBuilder(25);

To convert the int variable,number to a string,use the following statement.

What will be the tokens in the following statement? StringTokenizer strToken = new StringTokenizer("123-456-7890", "-",true);

What will be the tokens in the following statement? String str = "red$green&blue#orange"; String tokens = str.split("[$&#]");

Assuming that str is declared as follows, String str = "RSTUVWXYZ"; What value will be returned from str.charAt(5)?

If you do not specify delimiters in the StringToken constructor,which of the following cannot be a delimiter?