Wipro talent Array Based Question.

1) Simple Encoded Array: Maya has stored few confidential numbers in an array (array of int). To ensure that others do not find the numbers easily, she has applied a simple encoding.
Encoding used: Each array element has been substituted with a value that is the sum of its original value and its succeeding element’s value.
i.e. arr[i] = arr[i] + arr[i+1]
e.g. value in arr[0] = original value of arr[0] + original value of arr[1]
Also note that value of last element i.e. arr[last index] remains unchanged.

Example:
If the original array is –
{2, 5, 1, 7, 9, 3}
The encoded array would be –
{7, 6, 8, 16, 12, 3}

Provided the encoded array, you are expected to find the –
a) First number (value in index 0) in the original array
b) Sum of all numbers in the original array

The prototype of the function is:
public static void findOriginalFirstAndSum(int[] input1);
where input1 is the encoded array.
The method is expected to –

• find the value of the first number of the original array and store it in the member output1 and
• find the sum of all numbers in the original array and store it in the member output2

Assumption(s):

• The array elements can be positive and/or negative numbers

Example 1:
Original array = {2, 5, 1, 7, 9, 3}
Encoded array = {7, 6, 8, 16, 12, 3}
First number in original array = 2
Sum of all numbers in original array = 27
NOTE: Only the “Encoded array” will be supplied to the function and it is expected to do the processing to find the expected result values.

Comments

[XMachli]

import java.util.Scanner;

class Main {

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    Employee emp = new Employee();

    Long empId = sc.nextLong();
    emp.setEmpId(empId);

    String email = sc.next();
    emp.setEmpEmail(email);

    String password = sc.next();
    emp.setEmpPassword(password);

    Long phoneNo = sc.nextLong();
    emp.setEmpPhoneNo(phoneNo);

    Integer age = sc.nextInt();
    emp.setAge(age);

    // System.out.println(emp);

    Validator.validate(emp);
    sc.close();
}

}

class Employee {
private Long empId;
private String empEmail;
private String empPassword;
private Long empPhoneNo;
private Integer age;

public Long getEmpId() {
    return empId;
}

public void setEmpId(Long empId) {
    this.empId = empId;
}

public String getEmpEmail() {
    return empEmail;
}

public void setEmpEmail(String empEmail) {
    this.empEmail = empEmail;
}

public String getEmpPassword() {
    return empPassword;
}

public void setEmpPassword(String empPassword) {
    this.empPassword = empPassword;
}

public Long getEmpPhoneNo() {
    return empPhoneNo;
}

public void setEmpPhoneNo(Long empPhoneNo) {
    this.empPhoneNo = empPhoneNo;
}

public Integer getAge() {
    return age;
}

public void setAge(Integer age) {
    this.age = age;
}

}

class Validator {

public static void validate(Employee employee) {
    System.out.println(Validator.isValidEmployeeId(employee.getEmpId()));
    System.out.println(Validator.isValidEmployeeEmail(employee.getEmpEmail()));
    System.out.println(Validator.isValidEmployeePassword(employee.getEmpPassword()));
    System.out.println(Validator.isValidEmployeePhoneNo(employee.getEmpPhoneNo()));
    System.out.println(Validator.isValidEmployeeAge(employee.getAge()));

}

// ID Validation
public static Boolean isValidEmployeeId(Long empId) {
    return null;
}

// Email Validation
public static Boolean isValidEmployeeEmail(String empEmail) {
    return null;
}

// Password Validation
public static Boolean isValidEmployeePassword(String empPassword) {
    return null;
}

// PhoneNo Validation
public static Boolean isValidEmployeePhoneNo(Long empPhoneNo) {
    return null;
}

// DOB Validation
public static Boolean isValidEmployeeAge(Integer age) {
    return null;
}

}

[XMachli]

String[] parts = empEmail.split("@");
if (parts.length != 2) {
return false;
}
String part1 = parts[0];
String part2 = parts[1];

    if (part1.isEmpty() || part2.isEmpty()) {
        return false;
    }

    if (part1.length() > 64 || part2.length() > 255) {
        return false;
    }

    if (part1.startsWith(".") || part1.endsWith(".") || part2.startsWith(".") || part2.endsWith(".")) {
        return false;
    }

    if (part1.contains("..") || part2.contains("..")) {
        return false;
    }

    if (part1.matches(".*[._-]{2,}.*")) {
        return false;
    }

    if (!part1.matches("[A-Za-z0-9._-]+") || !part2.matches("[A-Za-z0-9.-]+")) {
        return false;
    }

    return true;

[XMachli]

class Validator {
// ID Validation
public static Boolean isValidEmployeeId(Long empId) {
String empIdString = String.valueOf(empId);
return empIdString.matches("[0-9]{6,7}");
}

// Email Validation
public static Boolean isValidEmployeeEmail(String empEmail) {
    String[] parts = empEmail.split("@");
    if (parts.length != 2) {
        return false;
    }
    String part1 = parts[0];
    String part2 = parts[1];

    if (part1.isEmpty() || part2.isEmpty()) {
        return false;
    }

    if (part1.length() > 64 || part2.length() > 255) {
        return false;
    }

    if (part1.startsWith(".") || part1.endsWith(".") || part2.startsWith(".") || part2.endsWith(".")) {
        return false;
    }

    if (part1.contains("..") || part2.contains("..")) {
        return false;
    }

    if (part1.matches(".*[._-]{2,}.*")) {
        return false;
    }

    if (!part1.matches("[A-Za-z0-9._-]+") || !part2.matches("[A-Za-z0-9.-]+")) {
        return false;
    }

    return true;
}

// Password Validation
public static Boolean isValidEmployeePassword(String empPassword) {
    if (empPassword.length() < 8 || empPassword.length() > 20) {
        return false;
    }

    if (!Pattern.compile("[0-9]").matcher(empPassword).find()) {
        return false;
    }

    if (!Pattern.compile("[A-Z]").matcher(empPassword).find()) {
        return false;
    }

    if (!Pattern.compile("[a-z]").matcher(empPassword).find()) {
        return false;
    }

    if (!Pattern.compile("[@#]").matcher(empPassword).find()) {
        return false;
    }

    if (Pattern.compile("\\s").matcher(empPassword).find()) {
        return false;
    }

    return true;
}

// PhoneNo Validation
public static Boolean isValidEmployeePhoneNo(Long empPhoneNo) {
String phoneNoString = String.valueOf(empPhoneNo);
return phoneNoString.matches("[1-9]{1}[0-9]{9}") && !phoneNoString.matches("(.)\1+");
}

// DOB Validation
public static Boolean isValidEmployeeAge(Integer age) {
    return age >= 18 && age < 45;
}

}

[XMachli]

String empIdString = String.valueOf(empId);
return empIdString.matches("[0-9]{6,7}");