Open Pankaj-Str opened 1 month ago
import java.util.Scanner;
public class Password_Checker1 {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
String setPassword,enterPassword;
System.out.println("Set Your Password: ");
setPassword=sc.nextLine();
System.out.println("Enter Your Password: ");
enterPassword=sc.nextLine();
int selectedAnswer;
if(setPassword.equals(enterPassword)){
System.out.println("Your password is correct...");
System.out.println("1. Who invented Java Programming?");
System.out.println("1. ) Guido van Rossum");
System.out.println("2. ) James Gosling");
System.out.println("3. ) Dennis Ritchie");
System.out.println("4. ) Bjarne Stroustru");
System.out.println("Select Answer: ");
selectedAnswer=sc.nextInt();
switch (selectedAnswer){
case 2:
System.out.println("Your answer is correct...");
System.out.println("2. Which component is used to compile, debug and execute the java program?");
System.out.println("1. ) JRE");
System.out.println("2. ) JIT");
System.out.println("3. ) JDK");
System.out.println("4. ) JVM");
System.out.println("Select your answer: ");
selectedAnswer=sc.nextInt();
switch(selectedAnswer){
case 3:
System.out.println("your answer is correct");
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
}else if(!setPassword.equals(enterPassword)){
System.out.println("Password is in correct try 3 times");
System.out.println("Enter Your Password: ");
enterPassword=sc.nextLine();
if(setPassword.equals(enterPassword)){
System.out.println("Your password is correct...");
System.out.println("1. Who invented Java Programming?");
System.out.println("1. ) Guido van Rossum");
System.out.println("2. ) James Gosling");
System.out.println("3. ) Dennis Ritchie");
System.out.println("4. ) Bjarne Stroustru");
System.out.println("Select Answer: ");
selectedAnswer=sc.nextInt();
switch (selectedAnswer){
case 2:
System.out.println("Your answer is correct...");
System.out.println("2. Which component is used to compile, debug and execute the java program?");
System.out.println("1. ) JRE");
System.out.println("2. ) JIT");
System.out.println("3. ) JDK");
System.out.println("4. ) JVM");
System.out.println("Select your answer: ");
selectedAnswer=sc.nextInt();
switch(selectedAnswer){
case 3:
System.out.println("your answer is correct");
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
}else{
System.out.println("Password is in correct try 2 times");
System.out.println("Enter Your Password: ");
enterPassword=sc.nextLine();
if(setPassword.equals(enterPassword)){
System.out.println("Your password is correct...");
System.out.println("1. Who invented Java Programming?");
System.out.println("1. ) Guido van Rossum");
System.out.println("2. ) James Gosling");
System.out.println("3. ) Dennis Ritchie");
System.out.println("4. ) Bjarne Stroustru");
System.out.println("Select Answer: ");
selectedAnswer=sc.nextInt();
switch (selectedAnswer){
case 3:
System.out.println("Your answer is correct...");
System.out.println("2. Which component is used to compile, debug and execute the java program?");
System.out.println("1. ) JRE");
System.out.println("2. ) JIT");
System.out.println("3. ) JDK");
System.out.println("4. ) JVM");
System.out.println("Select your answer: ");
selectedAnswer=sc.nextInt();
switch(selectedAnswer){
case 3:
System.out.println("your answer is correct");
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
}else{
System.out.println("Password is in correct try 1 times");
System.out.println("Enter Your Password: ");
enterPassword=sc.nextLine();
if(setPassword.equals(enterPassword)){
System.out.println("Your password is correct...");
System.out.println("1. Who invented Java Programming?");
System.out.println("1. ) Guido van Rossum");
System.out.println("2. ) James Gosling");
System.out.println("3. ) Dennis Ritchie");
System.out.println("4. ) Bjarne Stroustru");
System.out.println("Select Answer: ");
selectedAnswer=sc.nextInt();
switch (selectedAnswer){
case 3:
System.out.println("Your answer is correct...");
System.out.println("2. Which component is used to compile, debug and execute the java program?");
System.out.println("1. ) JRE");
System.out.println("2. ) JIT");
System.out.println("3. ) JDK");
System.out.println("4. ) JVM");
System.out.println("Select your answer: ");
selectedAnswer=sc.nextInt();
switch(selectedAnswer){
case 3:
System.out.println("your answer is correct");
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
}else{
System.out.println("Time out...");
}
}
}
}
}
}
package June_22;
import java.util.Scanner;
public class PasswordChecker {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("note: user select right password then start MCQ EXAM...\n" +
"Set Password:");
String setPassword = sc.next();
System.out.println("Enter Password:");
String enterPassword = sc.next();
if (enterPassword.equals(setPassword)) {
System.out.println("You can start your MCQ exam");
System.out.println(" 1. Who invented Java Programming?\n"+
"1. Guido van Rossum\n"+
"2. James Gosling\n"+
"3. Dennis Ritchie\n"+
"4. Bjarne Stroustrup");
System.out.println("Select answer from options");
int enteredAnswer;
enteredAnswer=sc.nextInt();
int correctAnswer=2;
if(enteredAnswer==correctAnswer){
System.out.println("right answer");
int rightAnswer=3;
System.out.println("Q2) Which component is used to compile, debug, and execute the Java programs?\n"+
" 1. JRE\n"+
" 2. JIT\n"+
" 3. JDK\n"+
" 4. JVM\n"+
"Select answer from options");
enteredAnswer=sc.nextInt();
if(enteredAnswer==rightAnswer){
System.out.println("right answer");
}
else {
System.out.println("Wrong answer... Try next year");
}
}
else {
System.out.println("Wrong answer... Try next year");
}
} else if (!enterPassword.equals(setPassword)) {
System.out.println("Wrong password... try 2 more times out of 2");
System.out.println("Enter Password:");
enterPassword = sc.next();
if (enterPassword.equals(setPassword)) {
System.out.println("You can start your MCQ exam");
System.out.println(" 1. Who invented Java Programming?\n"+
"1. ) Guido van Rossum\n"+
"2. ) James Gosling\n"+
"3. ) Dennis Ritchie\n"+
"4. ) Bjarne Stroustrup");
System.out.println("Select answer from options");
int enteredAnswer;
enteredAnswer=sc.nextInt();
int correctAnswer=2;
if(enteredAnswer==correctAnswer){
System.out.println("right answer");
int rightAnswer=3;
System.out.println("Q2) Which component is used to compile, debug, and execute the Java programs?\n"+
" 1) JRE\n"+
" 2) JIT\n"+
" 3) JDK\n"+
" 4) JVM\n"+
"Select answer from options");
enteredAnswer=sc.nextInt();
if(enteredAnswer==rightAnswer){
System.out.println("right answer");
}
else {
System.out.println("Wrong answer... Try next year");
}
}
else {
System.out.println("Wrong answer... Try next year");
}
} else if (!enterPassword.equals(setPassword)) {
System.out.println("Wrong password... try 1 more times out of 1");
System.out.println("Enter Password:");
enterPassword = sc.next();
if (enterPassword.equals(setPassword)) {
System.out.println("You can start your MCQ exam");
System.out.println(" 1. Who invented Java Programming?\n"+
"1. ) Guido van Rossum\n"+
"2. ) James Gosling\n"+
"3. ) Dennis Ritchie\n"+
"4. ) Bjarne Stroustrup");
System.out.println("Select answer from options");
int enteredAnswer;
enteredAnswer=sc.nextInt();
int correctAnswer=2;
if(enteredAnswer==correctAnswer){
System.out.println("right answer");
int rightAnswer=3;
System.out.println("Q2) Which component is used to compile, debug, and execute the Java programs?\n"+
" 1) JRE\n"+
" 2) JIT\n"+
" 3) JDK\n"+
" 4) JVM\n"+
"Select answer from options");
enteredAnswer=sc.nextInt();
if(enteredAnswer==rightAnswer){
System.out.println("right answer");
}
else {
System.out.println("Wrong answer... Try next year");
}
}
else {
System.out.println("Wrong answer... Try next year");
}
} else if (!enterPassword.equals(setPassword)) {
System.out.println("Wrong password... try 0 more times out of 0");
}
}
}
else {
System.out.println("Enter Password:");
enterPassword = sc.next();
System.out.println("You have reached your try limit");
}
}}
package ifelse;
import java.util.Scanner;
import static java.lang.System.exit;
public class Password_Checker {
public static void main(String[] args) {
String pasw,pasw1,paws3,paws4 ;
int option1,option3,option4 ;
Scanner sc=new Scanner(System.in);
System.out.println("set the password ");
pasw=sc.next();
System.out.println("enter the password");
pasw1=sc.next();
if (! pasw.equals(pasw1)) {
System.out.println("try again ");
paws3= sc.next();
if (!paws3.equals(pasw)){
System.out.println("try again password");
paws4=sc.next();
if (!pasw.equals(paws4)) {
System.out.println("try next year");
exit(0);
}
else System.out.println("current password");
}
else System.out.println("current password");
}
else System.out.println("current password");
System.out.println("Q1. What is the capital of France?");
System.out.println("1. Paris");
System.out.println("2. London");
System.out.println("3. Berlin");
System.out.println("4. Madrid");
System.out.print("Choose any one option ");
option1=sc.nextInt();
switch (option1) {
case 1:
System.out.println("Current Answer");
break;
case 2, 4, 3:
System.out.println("Wrong answer Try next time");
exit(0);
break;
default:
System.out.println("choose between 1 to 4 only try again");
}
System.out.println("Q1. Which planet is known as the “Red Planet”");
System.out.println("1. Venus");
System.out.println("2. Mars");
System.out.println("3. Jupiter");
System.out.println("4. Saturn");
System.out.print("Choose any one option ");
option3=sc.nextInt();
switch (option3) {
case 1, 4, 3:
System.out.println("Wrong answer Try next time");
exit(0);
break;
case 2:
System.out.println("Current Answer");
break;
default:
System.out.println("choose between 1 to 4 only try again");
}
System.out.println("Q1. Who wrote the play “Romeo and Juliet”?");
System.out.println("1. William Shakespeare");
System.out.println("2. Jane Austen");
System.out.println("3. Charles Dickens");
System.out.println("4. Mark Twain");
System.out.print("Choose any one option ");
option4=sc.nextInt();
switch (option4) {
case 1:
System.out.println("Current Answer");
break;
case 2, 3, 4:
System.out.println("Wrong answer Try next time");
exit(0);
break;
default:
System.out.println("choose between 1 to 4 only try again");
}
System.out.println("hello");
}
}
package Loop;
import java.util.Scanner;
public class passwordChecker {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int pwd;
int c_pwd;
System.out.println("Enter Password : ");
pwd = scanner.nextInt();
System.out.println("Confirm Password : ");
c_pwd = scanner.nextInt();
if (c_pwd != pwd) {
System.out.println("Password is Incorrect ... 2 chances remain");
c_pwd = scanner.nextInt();
}if (c_pwd != pwd) {
System.out.println("Password is Incorrect ... 1 chances remain");
c_pwd = scanner.nextInt();
} if (c_pwd != pwd) {
System.out.println("Password is Incorrect ... 0 chances remain");
System.out.println("Password Locked");
}else if (c_pwd == pwd) {
System.out.println("Password is Correct");
int option;
String Answer;
System.out.println("1. Who invented Java Programming?\n" +
" 1. ) Guido van Rossum\n" +
" 2. ) James Gosling\n" +
" 3. ) Dennis Ritchie\n" +
" 4. ) Bjarne Stroustrup");
option = scanner.nextInt();
switch (option) {
case 1:
Answer = "Guido van Rossum";
break;
case 2:
Answer = "James Gosling";
break;
case 3:
Answer = "Dennis Ritchie";
break;
case 4:
Answer = "Bjarne Stroustrup";
break;
default:
Answer = "Choose the given options";
break;
}
String C_ans = "James Gosling";
System.out.println("Your answer is " + Answer);
if (Answer == C_ans){
System.out.println("Your answer is correct");
System.out.println("You may head to next question");
}else {
System.out.println("Your answer is incorrect");
System.out.println("Try again next Year");
return;
}
int option2;
String Answer2;
System.out.println(" 2. Which component is used to compile, debug and execute the java programs?\n" +
" 1. ) JRE\n" +
" 2. ) JIT\n" +
" 3. ) JDK\n" +
" 4. ) JVM");
option2 = scanner.nextInt();
switch (option2) {
case 1:
Answer2 = "JRE";
break;
case 2:
Answer2 = "JIT";
break;
case 3:
Answer2 = "JDK";
break;
case 4:
Answer2 = "JVM";
break;
default:
Answer2 = "Choose the given options";
break;
}
String C_ans2 = "JIT";
System.out.println("Your answer is " + Answer2);
if (Answer2 == C_ans2){
System.out.println("Your answer is correct");
//System.out.println("You may head to next question");
}else {
System.out.println("Your answer is incorrect");
System.out.println("Try again next Year");
}
}
}
}
package basic;
import java.util.Scanner;
public class CheckPassword {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String setPassword;
int maxAttempts = 3;
int attempt = 0;
System.out.println("Set a Strong Password: ");
setPassword = scanner.nextLine();
while (attempt < maxAttempts) {
System.out.print("Enter password: ");
String enteredPassword = scanner.nextLine();
if (enteredPassword.equals(setPassword))
{
System.out.println("Password correct! Starting MCQ test...");
runMCQTest();
break;
}
else
{
System.out.println("Incorrect password");
attempt++;
}
}
if (attempt == maxAttempts) {
System.out.println("No more attempts");
}
scanner.close();
}
private static void runMCQTest() {
Scanner scanner = new Scanner(System.in);
System.out.println("MCQ Test:");
System.out.println("1. Who Invented Java Programming Language?");
System.out.println("a) Guido van Rossum");
System.out.println("b) James Gosling");
System.out.println("c) Dennis Ritchie");
System.out.println("d) Bjarne Stroustrup");
char answer1 = scanner.next().charAt(0);
System.out.println("2. Which Component is used to compile, debug and execute the java programs?");
System.out.println("a) JRE");
System.out.println("b) JIT");
System.out.println("c) JDK");
System.out.println("d) JVM");
char answer2 = scanner.next().charAt(0);
if (answer1 == 'b') {
System.out.println("Correct ans");}
else {
System.out.println("Incorrect");}
if (answer2 == 'c') {
System.out.println("Correct ans");}
else {
System.out.println("Incorrect");}
scanner.close();
}
}
package Assignment;
import java.util.Scanner;
public class if_else_Assignment_7_1 {
public static void main(String[] args) {
String pass1 ,pass2;
int count;
System.out.println("Set Your Password");
Scanner sc = new Scanner(System.in);
pass1 = sc.next();
System.out.println("Enter Your Password");
pass2 = sc.next();
for( count = 3; count >= 0; count--) {
if(!pass1.equals(pass2)) {
System.out.println("Enter the password " + count + " more time(s)");
} else {
System.out.println("Passwords match!");
break;
}
}
if(pass1.equals(pass2))
{ int option;
System.out.println(" Start the exam " );
System.out.println(" 1. Who invented Java Programming?\r\n"
+ " 1. ) Guido van Rossum\r\n"
+ " 2. ) James Gosling\r\n"
+ " 3. ) Dennis Ritchie\r\n"
+ " 4. ) Bjarne Stroustrup" );
Scanner scc = new Scanner(System.in);
option = scc.nextInt();
switch(option)
{
case 1:
System.out.println("Try next year");
break;
case 2:
System.out.println("correct Answer");
System.out.println("2. Which component is used to compile, debug and execute the java programs?\r\n"
+ " 1. ) JRE\r\n"
+ " 2. ) JIT\r\n"
+ " 3. ) JDK\r\n"
+ " 4. ) JVM");
int optionn = scc.nextInt();
switch(optionn)
{
case 1:
System.out.println("Try next year");
break;
case 2:
System.out.println("Try next year");
break;
case 3:
System.out.println("correct Answer");
break;
case 4:
System.out.println(("Try next year");
break;
default:
System.out.println("Invalid input");
break;
}
break;
case 3:
System.out.println("Try next year");
break;
case 4 :
System.out.println("Try next year");
break;
default:
System.out.println("Invalid input");
break;
}
}
}
}
import java.util.Scanner;
public class passwordcheck {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
String setPassword,enterPassword;
System.out.println("Set Your Password: ");
setPassword=sc.nextLine();
System.out.println("Enter Your Password: ");
enterPassword=sc.nextLine();
int selectedAnswer;
if(setPassword.equals(enterPassword)){
System.out.println("Your password is correct...");
System.out.println("1. Who invented Java Programming?");
System.out.println("1. ) Guido van Rossum");
System.out.println("2. ) James Gosling");
System.out.println("3. ) Dennis Ritchie");
System.out.println("4. ) Bjarne Stroustru");
System.out.println("Select Answer: ");
selectedAnswer=sc.nextInt();
switch (selectedAnswer){
case 2:
System.out.println("Your answer is correct...");
System.out.println("2. Which component is used to compile, debug and execute the java program?");
System.out.println("1. ) JRE");
System.out.println("2. ) JIT");
System.out.println("3. ) JDK");
System.out.println("4. ) JVM");
System.out.println("Select your answer: ");
selectedAnswer=sc.nextInt();
switch(selectedAnswer){
case 3:
System.out.println("your answer is correct");
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
}else if(!setPassword.equals(enterPassword)){
System.out.println("Password is in correct try 3 times");
System.out.println("Enter Your Password: ");
enterPassword=sc.nextLine();
if(setPassword.equals(enterPassword)){
System.out.println("Your password is correct...");
System.out.println("1. Who invented Java Programming?");
System.out.println("1. ) Guido van Rossum");
System.out.println("2. ) James Gosling");
System.out.println("3. ) Dennis Ritchie");
System.out.println("4. ) Bjarne Stroustru");
System.out.println("Select Answer: ");
selectedAnswer=sc.nextInt();
switch (selectedAnswer){
case 2:
System.out.println("Your answer is correct...");
System.out.println("2. Which component is used to compile, debug and execute the java program?");
System.out.println("1. ) JRE");
System.out.println("2. ) JIT");
System.out.println("3. ) JDK");
System.out.println("4. ) JVM");
System.out.println("Select your answer: ");
selectedAnswer=sc.nextInt();
switch(selectedAnswer){
case 3:
System.out.println("your answer is correct");
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
}else{
System.out.println("Password is in correct try 2 times");
System.out.println("Enter Your Password: ");
enterPassword=sc.nextLine();
if(setPassword.equals(enterPassword)){
System.out.println("Your password is correct...");
System.out.println("1. Who invented Java Programming?");
System.out.println("1. ) Guido van Rossum");
System.out.println("2. ) James Gosling");
System.out.println("3. ) Dennis Ritchie");
System.out.println("4. ) Bjarne Stroustru");
System.out.println("Select Answer: ");
selectedAnswer=sc.nextInt();
switch (selectedAnswer){
case 3:
System.out.println("Your answer is correct...");
System.out.println("2. Which component is used to compile, debug and execute the java program?");
System.out.println("1. ) JRE");
System.out.println("2. ) JIT");
System.out.println("3. ) JDK");
System.out.println("4. ) JVM");
System.out.println("Select your answer: ");
selectedAnswer=sc.nextInt();
switch(selectedAnswer){
case 3:
System.out.println("your answer is correct");
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
}else{
System.out.println("Password is in correct try 1 times");
System.out.println("Enter Your Password: ");
enterPassword=sc.nextLine();
if(setPassword.equals(enterPassword)){
System.out.println("Your password is correct...");
System.out.println("1. Who invented Java Programming?");
System.out.println("1. ) Guido van Rossum");
System.out.println("2. ) James Gosling");
System.out.println("3. ) Dennis Ritchie");
System.out.println("4. ) Bjarne Stroustru");
System.out.println("Select Answer: ");
selectedAnswer=sc.nextInt();
switch (selectedAnswer){
case 3:
System.out.println("Your answer is correct...");
System.out.println("2. Which component is used to compile, debug and execute the java program?");
System.out.println("1. ) JRE");
System.out.println("2. ) JIT");
System.out.println("3. ) JDK");
System.out.println("4. ) JVM");
System.out.println("Select your answer: ");
selectedAnswer=sc.nextInt();
switch(selectedAnswer){
case 3:
System.out.println("your answer is correct");
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
break;
default:
System.out.println("Your answer is incorrect try next year...");
break;
}
}else{
System.out.println("Time out...");
}
}
}
}
}
}
Develop a Java program that implements a Password Checker and an MCQ Exam system. The program should:
Sample Output:
Set your password: p4n@in
Enter your Password: p4n wrong password... try 2 more time out of 2
Enter your Password: p4n@ wrong password... try 1 more time
Enter your Password: p4n@34 wrong password... try 0 more time
Note: user select right password then start MCQ EXAM...
Select Answer: 2
wrong answer [ Try Next year ]
Note: if select Right Answer ask 2nd Question ...
Select Answer: 2
... continue with the next question