What is y after the following statement is executed? x = -1; y = (x < 0) ? -2 : 3; a. -3 b. -2 с. 3 d. e. Illegal expression 12. What is the output of the following code? boolean even = false; System.out.printIn((even ? "true" : "false")); a. true b. false c. nothing d. true false
Operations
In mathematics and computer science, an operation is an event that is carried out to satisfy a given task. Basic operations of a computer system are input, processing, output, storage, and control.
Basic Operators
An operator is a symbol that indicates an operation to be performed. We are familiar with operators in mathematics; operators used in computer programming are—in many ways—similar to mathematical operators.
Division Operator
We all learnt about division—and the division operator—in school. You probably know of both these symbols as representing division:
Modulus Operator
Modulus can be represented either as (mod or modulo) in computing operation. Modulus comes under arithmetic operations. Any number or variable which produces absolute value is modulus functionality. Magnitude of any function is totally changed by modulo operator as it changes even negative value to positive.
Operators
In the realm of programming, operators refer to the symbols that perform some function. They are tasked with instructing the compiler on the type of action that needs to be performed on the values passed as operands. Operators can be used in mathematical formulas and equations. In programming languages like Python, C, and Java, a variety of operators are defined.
Answer 10 to 12
![7. To obtain the are sine of 0.5 degree, use
Math.asin(0.5)
Math.asin(Math.toDegrees(0.5))
Math.asin(Math.toRadians(0.5))
Math.sin(0.5)
a.
b.
с.
d.
8. What is the value of the following expression?
true || true && false
true
false
а.
b.
9. What is y displayed in the following code?
public class Testl {
public static void main(String[] args) {
int x = 1;
int y = x = x + 1;
System.out.println("y is " + y);
}
}
a. y is 0.
b. y is 1 because x is assigned to y first.
c. y is 2 because x + 1 is assigned to x and then x is assigned to y.
d. The program has a compile error since x is redeclared in the statement int y = x = x +1
10. Analyze the following program fragment:
int x;
double d = 1.5;
switch (d) {
case 1.0: x = 1;
case 1.5: x = 2;
case 2.0: x = 3;
Which of these is correct about the above code?
The program has a compile error because the required break statement is missing
in the switch statement.
The program has a compile error because the required default case is missing in
the switch statement.
a.
b.
с.
The switch control variable cannot be double.
d.
No errors.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd070c601-43cf-4c7f-b3ee-07dbe2660b26%2Fa24f75d0-22cf-4dae-82cd-25376fce6e6f%2Fy8ibvze_processed.png&w=3840&q=75)
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