Thursday, December 30, 2021

Java int to string

 You are given an integer , you have to convert it into a string.

Please complete the partially completed code in the editor. If your code successfully converts  into a string  the code will print "Good job". Otherwise it will print "Wrong answer".

 can range between  to  inclusive.

Sample Input 0

100

Sample Output 0

Good job
Answer: //3ways of converting an integer to string:
 //String s = String.valueOf(n);
//String s = Integer.toString(n);
//String s = "" + n;
import java.util.*;
import java.security.*;
public class Solution {
 public static void main(String[] args) {

  DoNotTerminate.forbidExit();

  try {
   Scanner in = new Scanner(System.in);
   int n = in .nextInt();
   in.close();
   //String s=???; Complete this line below
String s = ""+n;
   //Write your code here

   if (n == Integer.parseInt(s)) {
    System.out.println("Good job");
   } else {
    System.out.println("Wrong answer.");
   }
  } catch (DoNotTerminate.ExitTrappedException e) {
   System.out.println("Unsuccessful Termination!!");
  }
 }
}

//The following class will prevent you from terminating the code using exit(0)!
class DoNotTerminate {

 public static class ExitTrappedException extends SecurityException {

  private static final long serialVersionUID = 1;
 }

 public static void forbidExit() {
  final SecurityManager securityManager = new SecurityManager() {
   @Override
   public void checkPermission(Permission permission) {
    if (permission.getName().contains("exitVM")) {
     throw new ExitTrappedException();
    }
   }
  };
  System.setSecurityManager(securityManager);
 }
}

JAVA DATE AND TIME

 The Calendar class is an abstract class that provides methods for converting between a specific instant in time and a set of calendar fields such as YEAR, MONTH, DAY_OF_MONTH, HOUR, and so on, and for manipulating the calendar fields, such as getting the date of the next week.


You are given a date. You just need to write the method, , which returns the day on that date. To simplify your task, we have provided a portion of the code in the editor.

Example


The method should return  as the day on that date.

image

Function Description

Complete the findDay function in the editor below.

findDay has the following parameters:

  • int: month
  • int: day
  • int: year

Returns

  • string: the day of the week in capital letters

Input Format

A single line of input containing the space-separated month, day, and year, respectively, in    format.

Constraints

Sample Input

08 05 2015

Sample Output

WEDNESDAY

Explanation

The day on August th  was WEDNESDAY.


Answer:

import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.function.*;
import java.util.regex.*;
import java.util.stream.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;
import java.time.LocalDate;
class Result {

    public static String findDay(int month, int day, int year) {
             LocalDate date = LocalDate.of(year, month, day);
            return date.getDayOfWeek().toString();    
    }

}

Java Regex

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