int bits and values
char bits and values
byte bits and values
long bits and values (use ^ to represent to the power of).
double bits and values. (use ^ to represent to the power of)
double, float, int, short, long, char, byte.
o1 is true, o2 is false, and o3 is false, evaluate each of the following expressions:
o1 || o2 && o3True.
False.
o1 ^ o2True.
False.
!o1 && !o2True.
False.
+ - () * / % < ==
*,++, %, ==
11 / 3 % 2 == 111 / 2 % 2 > 015 % 3 >= 21 %12.0 / 4.0 >= 12 / 315 / 3 == truem have after each of the statements that follow is executed? Assume that m, k, j are reinitialized before each statement. int m = 5, k = 0, j = 1;
m = ++k + j;m += ++k * j;m %= ++k + ++j;m = m - k - j;m = ++m;b have after each of the statements that follow is executed? Assume that m, k, j are reinitialized before each statement. It may help to parenthesize the right-hand side of the statements before evaluating them.
boolean b;
int m = 5, k = 0, j = 1;
b = m > k + j;b = m <= 5 && m % 2 == 1;b = m < k || k < j;b = --m == 2 * ++j;char c = 'a' ;
int m = 95;
c = c + 5;c = 'A' + 'B';m = c + 5;c = (char) m + 1;m = 'a' - 32;pi times the radius squared.pi times the radius squared.pi times radius cubed divide by h.
m and n are equal, then m is incremented by one; otherwise n is incremented.m is greater than n times 5, then square m and double n; otherwise square n and double m.
int m = 0, n = 0, j = 0, k = 0;
m = 2 * n++;
System.out.println("m= " + m + " n= " + n);
j += ( --k * 2 );
System.out.println("j= " + j + " k= " + k);
public class MethodTester {
public static int square(int n) {
return n * n;
}
public static void main(String args[]) {
System.out.println("5 squared = " + square(5));
}
}
square() method with your method. Note that you must declare your method static if you want to call it directly from main() as we do here.
double parameters, one for the sales price and the other for the tax rate. It should return a double. For example, calcTax(20.0, 0.05) should return 1.0.
int parameter, representing what day of the year it is, and returns a String like ``Monday.’’ For example, for 2004, a leap year, the first day of the year was on Thursday. The thirty-second day of the year (February 1, 2004) was a Sunday, so getDayOfWeek(1) should return “Thursday” and getDayOfWeek(32) should return “Sunday.” char to lowercase. For example, toLowerCase('A') should return `a’. Make sure you guard against method calls like toLowerCase('a').
char by n places in the alphabet, wrapping around to the start of the alphabet, if necessary. For example, shift('a',2) should return `c’; shift('y',2) should return `a’. This method can be used to create a Caesar cipher, in which every letter in a message is shifted by n places---hfu ju? (Refer to Chapter~1 exercises for a refresher on Caesar cipher.)
boolean parameter to a String. For example, boolToString(true) should return ``true.’’
N SQUARE CUBE 1 1 1 2 4 8 3 9 27 4 16 64 5 25 125
JTextField for I/O and JButtons for the various conversion actions.
BankCD class covered in this chapter. Use separate JTextFields for the user’s inputs and a separate JTextField for the result.
getDayOfWeek() and getDay() methods that you developed in previous exercises.
JTextField for inputting a grade and a single JTextField for displaying the average and letter grade. The program should keep track internally of how many grades the student has entered. Each time a new grade is entered, it should display the current average and probable letter grade.
Temperature class (Figure 5.7.6). According to this design, the class would contain an instance variable, say, temperature, and access methods that operate on it. The access methods would be:
setFahrenheit(double)
getFahrenheit():double
setCelsius(double)
getCelsius():double
K = C + 273.15
Temperature class. Which design is more object oriented, this one or the one used in Figure 5.7.6?
Temperature class using the design described in the previous exercise.
