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a.
str.regionMatches(6, str1, 0, str1.length())
b.
str.regionMatches(
true
, 31, "Analysis", 0, 8)
12.
Which class contains the function
pow
? Write the statement to use the
method
pow
to compute and output 6.5
3.5
.
13.
Suppose that
name
is a variable of type
String
. Write the input statement
to read and store the input
Brenda Clinton
in
name
. (Assume that the
input is from the standard input device and it is the only input in a line; and
console
is a
Scanner
object initialized to the standard input device.)
14. a.
What method is used to create an input dialog box?
b.
What method is used to create an output dialog box?
c.
What is the name of the
class
that contains the methods to create
input and output dialog boxes?
d.
What is the name of the
package
that contains the
class
described in
part c?
15.
What does the following statement do? (Assume that
scoreStr
is a
String
variable.)
scoreStr = JOptionPane.showInputDialog("Enter the score:");
16.
Write a Java statement that creates the output dialog box in Figure 3-16.
3
FIGURE 3-16
Figure for Exercise 16, Chapter 3
17.
Write a Java statement that creates the output dialog box in Figure 3-17.
FIGURE 3-17
Figure for Exercise 17, Chapter 3
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