Homework Answers
Lexemes:- Lexemes are the collection of words and symbols in a programming language. These can be anything like identifier, number, string or character.
Number of lexemes:-
1. public class RectArea {
In line 1 there are 4 lexemes, as we can count one by one like public, class, RectArea, and {.
2. public static double area (double length, double width) {
In line 2 there are 12 lexemes, as we can count like public, static, double, area, (, double, length, , , double, width, ), {.
3. double area=0.0;
In line 3 there are 5 lexemes. we can count as above.
4. try {
In line 4 there are 2 lexemes.
5. area=width*height;
In line 5 there are 6 lexemes.
6. } catch(Exception e) {
In line 6 there are 7 lexemes.
7. System.out.println("Error in RectArea.area: " +
In line 7 there are 15 lexemes.
8. e.getMessage());
In line 8 there are 7 lexemes.
9. System.exit(1);
In line 9 there are 7 lexemes.
10. }
In line 10 there are 1 lexemes.
11. return area;
In line 11 there are 3 lexemes.
12. }
In line 12 there are 1 lexemes.
13. }
In line 13 there are 1 lexemes.
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Please write in dr java
Here is the driver:
import java.util.*;
public class SquareDriver {
public static void main(String[] args)
{
Scanner keyboard = new Scanner(System.in);
String input ="";
System.out.println("Welcome to the easy square program");
while(true)
{
System.out.println("Enter the length of the side of a square or enter QUIT to quit");
try
{
input = keyboard.nextLine();
if(input.equalsIgnoreCase("quit"))
break;
int length = Integer.parseInt(input);
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In Java. Please use the provided code Homework 5 Code: public class Hw05Source { public static...
In Java. Please use the provided code
Homework 5 Code:
public class Hw05Source {
public static void main(String[] args)
{
String[] equations ={"Divide 100.0 50.0",
"Add 25.0 92.0", "Subtract 225.0 17.0",
"Multiply 11.0 3.0"};
CalculateHelper helper= new CalculateHelper();
for (int i = 0;i {
helper.process(equations[i]);
helper.calculate();
System.out.println(helper);
}
}
}
//==========================================
public class MathEquation {
double leftValue;
double rightValue;
double result;
char opCode='a';
private MathEquation(){
}
public MathEquation(char opCode) {
this();
this.opCode = opCode;
}
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rightValue){...
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Please write in dr java
Here is the driver:
import java.util.*;
public class SquareDriver {
public static void main(String[] args)
{
Scanner keyboard = new Scanner(System.in);
String input ="";
System.out.println("Welcome to the easy square program");
while(true)
{
System.out.println("Enter the length of the side of a square or enter QUIT to quit");
try
{
input = keyboard.nextLine();
if(input.equalsIgnoreCase("quit"))
break;
int length = Integer.parseInt(input);
Square s = new Square();
s.setLength(length);
s.draw();
System.out.println("The area is "+s.getArea());
System.out.println("The perimeter is "+s.getPerimeter());
}
catch(DimensionException e)...
In Java. Please use the provided code
Homework 5 Code:
public class Hw05Source {
public static void main(String[] args)
{
String[] equations ={"Divide 100.0 50.0",
"Add 25.0 92.0", "Subtract 225.0 17.0",
"Multiply 11.0 3.0"};
CalculateHelper helper= new CalculateHelper();
for (int i = 0;i {
helper.process(equations[i]);
helper.calculate();
System.out.println(helper);
}
}
}
//==========================================
public class MathEquation {
double leftValue;
double rightValue;
double result;
char opCode='a';
private MathEquation(){
}
public MathEquation(char opCode) {
this();
this.opCode = opCode;
}
public MathEquation(char opCode,double leftVal,double
rightValue){...
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