In a conditional statement, the______ symbol is used to separate a test expression from the expression to be processed if the te
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Answer:
a) 1011
Explanation:
In 4 bit two's complement representation, the first bit is the sign bit.
If the sign bit is 1, the number is negative.
If the sign bit is 0, the number is positive.
What is the magnitude of the sign bit?
In n-bit two's complement representation, the magnitude of the sign bit is:
So, in 4-bit two's complement representation, the magnitude of the sign bit is:
Since the number is negative, the value of this bit is -8.
The other bits are magnitude bits, positive.
We have that the sum of these bits must be -5, and we already have -8. So what should be the value of these last 3 bits?
First, i am going to solve this equation to find the decimal value of the last three bits.
So, the last three bits are:
The binary encoding of the number -5 is:
a) 1011
The program illustrates the use of repetitive operations.
The program in java is as follows, where comments are used to explain each line
import java.util.*;
public class Main{
public static void main(String [] args){
<em>//This creates a scanner object</em>
Scanner input = new Scanner(System.in);
<em>//This declares employee number and hours, as integer</em>
int empNum, hrs;
<em>//This declares the rate and pay (salary) as double</em>
double rate,pay;
<em>//This gets input for employee number</em>
empNum = input.nextInt();
<em>//The following while operation is repeated until user inputs -1</em>
while(empNum != - 1){
<em>//This gets input for worked hours</em>
hrs = input.nextInt();
<em>//This gets input for work rate</em>
rate = input.nextDouble();
<em>//This calculates the pay (base salary)</em>
pay = rate * hrs;
<em>//If worked hours is more than 40</em>
if(hrs >40){
<em>//This calculates the additional pay</em>
pay += 0.5 * pay;
}
<em>//This prints the total salary</em>
System.out.println("Salary: "+pay);
<em>//This gets input for the employee number </em>
empNum = input.nextInt();
}
}
}<em>// The program ends here</em>
At the end of the program, the program prints the employee's salary
See attachment for sample run
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