Chapter 3 Flashcards
What are examples of keywords?
double, class, char, int, public, static
How do you define “int” and giving it a value?
import java.util.Scanner;
public class NAME
{
public static void main (String args[])
{
int a=1, b=2, c=3What is definition of “byte”?
a group of binary digits or bits (usually eight) operated on as a unit (8 ; – 128 to 127)
What is definition of “short”?
signed 16-bit type least used (16 ; -32 thousand to 32 thousand)
What is definition of “int”?
signed 32-bit type; most common (32 ; -2 billion to 2 billion)
What is definition of “long”?
signed 64-bit type (64; 9 quintillion to 9 quintillion)
What are the binary operations?
Add, Subtract, Divide, MOD
What is the order of operations for binary?
Parenthesis, Exponents, Multiply/ Divide/MOD, Add/Subtract
What is Java real number data types?
“double” - more accurate and only one tested
“float” - not tested
Which binary arithmetic operation is something that you would not normally use?
MOD
How many bytes are there in double?
8 bytes
What does “X++” and “++X” output?
X+1
What does “+=” do?
double x = 1.3;
x += 0.1;
It takes the value of x, adds 0.1 to it, and then stores the result of (x + 0.1) back into x.
Be able to trace code using the short cuts…
GOOD LUCK!
What is “chaining”?
assign character to multiple fields
