What is wrong with my code? Trying to fix the Boolean situation and it keeps skipping...
What is wrong with my code? Trying to fix the Boolean situation and it keeps skipping my boolean question and repeating.
import java.util.Scanner;
public class MyTest{
public static void main (String [] args){
Scanner input = new
Scanner(System.in);
System.out.println("JAVA
QUIZ");
System.out.println("This quiz
includes three questions about the Java Programming
Language.");
System.out.println("Each question
has 4 possible answers. (numbered 1,2,3,4)");
System.out.println("Enter 0 to exit
the test.");
System.out.println();
boolean retryTest = true;
while(retryTest == true){
int correctCount
= 0;
int menuChoice =
1;
System.out.println("What is the default value of String
variable?");
System.out.println("1) \"\" ");
System.out.println("2) \" ");
System.out.println("3) not defined ");
System.out.println("4) null ");
System.out.println();
menuChoice =
input.nextInt();//user input from first question
if(menuChoice
< 0){
System.out.println("Number must be between
1,2,3,4 or 0 to stop");
}
//if user enters
anything greater than three invalid number
else
if(menuChoice > 4){
System.out.println("Number must be between
1,2,3,4 or 0 to stop");
}
if(menuChoice ==
3){
correctCount++;
}
if(menuChoice ==
0){
break;
}
System.out.println("What is true about a final class?");
System.out.println("1) Class declared final is a final class ");
System.out.println("2) Final classes are created so the methods
implemented by that class cannot be overridden ");
System.out.println("3) It cant be overridden ");
System.out.println("4) All of the above ");
System.out.println();
menuChoice =
input.nextInt();
if(menuChoice
< 0){
System.out.println("Number must be between
1,2,3,4 or 0 to stop");
}
//if user enters
anything greater than three invalid number
else
if(menuChoice > 4){
System.out.println("Number must be between
1,2,3,4 or 0 to stop");
}
if(menuChoice ==
4){
correctCount++;
}
if(menuChoice ==
0){
break;
}
System.out.println(" What is the size of int variable?");
System.out.println("1) 8 bit ");
System.out.println("2) 32 bit ");
System.out.println("3) 12 bit ");
System.out.println("4) 64 bit ");
System.out.println();
menuChoice =
input.nextInt();
if(menuChoice
< 0){
System.out.println("Number must be between
1,2,3,4 or 0 to stop");
}
//if user enters
anything greater than three invalid number
else
if(menuChoice > 4){
System.out.println("Number must be between
1,2,3,4 or 0 to stop");
}
if(menuChoice ==
2){
correctCount++;
}
if(menuChoice ==
0){
break;
}
if(correctCount
== 3){
System.out.println("Excellent");
}
else
if(correctCount == 2){
System.out.println("Very Good");
}
else{
System.out.println("It is time to start to
learning Java");
}
System.out.println();
System.out.println("Do you want to continue? (Enter True to
continue False to exit)");
System.out.println();
if(retryTest ==
false){
System.out.print("Exiting Program");
System.exit(0);
}
}
System.out.println("Good
Bye");
}
}
Homework Answers
THAT IS HAPPENING BECAUSE YOU FORGOT TO TAKE THE INPUT FROM THE USER AFTER THE BOOLEAN SITUATION. THE UPDATED CODE IS BELOW:-
YOU JUST NEED TO ADD THIS:-
retryTest = input.nextBoolean();
NOW WHOLE CODE:-
import java.util.*;
public class HomeworkLib {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("JAVA QUIZ");
System.out.println("This quiz includes three questions about the Java Programming Language.");
System.out.println("Each question has 4 possible answers. (numbered 1,2,3,4)");
System.out.println("Enter 0 to exit the test.");
System.out.println();
boolean retryTest = true;
while (retryTest == true) {
int correctCount = 0;
int menuChoice = 1;
System.out.println("What is the default value of String variable?");
System.out.println("1) \"\" ");
System.out.println("2) \" ");
System.out.println("3) not defined ");
System.out.println("4) null ");
System.out.println();
menuChoice = input.nextInt();// user input from first question
if (menuChoice < 0) {
System.out.println("Number must be between 1,2,3,4 or 0 to stop");
}
// if user enters anything greater than three invalid number
else if (menuChoice > 4) {
System.out.println("Number must be between 1,2,3,4 or 0 to stop");
}
if (menuChoice == 3) {
correctCount++;
}
if (menuChoice == 0) {
break;
}
System.out.println("What is true about a final class?");
System.out.println("1) Class declared final is a final class ");
System.out.println(
"2) Final classes are created so the methods implemented by that class cannot be overridden ");
System.out.println("3) It cant be overridden ");
System.out.println("4) All of the above ");
System.out.println();
menuChoice = input.nextInt();
if (menuChoice < 0) {
System.out.println("Number must be between 1,2,3,4 or 0 to stop");
}
// if user enters anything greater than three invalid number
else if (menuChoice > 4) {
System.out.println("Number must be between 1,2,3,4 or 0 to stop");
}
if (menuChoice == 4) {
correctCount++;
}
if (menuChoice == 0) {
break;
}
System.out.println(" What is the size of int variable?");
System.out.println("1) 8 bit ");
System.out.println("2) 32 bit ");
System.out.println("3) 12 bit ");
System.out.println("4) 64 bit ");
System.out.println();
menuChoice = input.nextInt();
if (menuChoice < 0) {
System.out.println("Number must be between 1,2,3,4 or 0 to stop");
}
// if user enters anything greater than three invalid number
else if (menuChoice > 4) {
System.out.println("Number must be between 1,2,3,4 or 0 to stop");
}
if (menuChoice == 2) {
correctCount++;
}
if (menuChoice == 0) {
break;
}
if (correctCount == 3) {
System.out.println("Excellent");
} else if (correctCount == 2) {
System.out.println("Very Good");
} else {
System.out.println("It is time to start to learning Java");
}
System.out.println();
System.out.println("Do you want to continue? (Enter true to continue false to exit)");
retryTest = input.nextBoolean();
System.out.println();
if (retryTest == false) {
System.out.print("Exiting Program");
System.exit(0);
}
}
System.out.println("Good Bye");
}
}
FOR ANY OTHER PLEASE COMMENT.
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