Category: How to print 3 digit number in java

How to print 3 digit number in java

19.10.2020 By Malamuro

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I would like to format a 3-digit integer to a 4-digit string value.

Use String format :. For other formats refer the documentation. If you want to have it only once use String. You can always use Jodd Printf for that. In your case:. This class was created before Sun added String.

Learn more. How to format a 3-digit integer to a 4-digit string? Asked 7 years, 2 months ago. Active 7 years, 2 months ago. Viewed 39k times. Melvin Lai Melvin Lai 3 3 gold badges 13 13 silver badges 35 35 bronze badges. Take a look at docs.

how to print 3 digit number in java

This helped a lot! Active Oldest Votes.

how to print 3 digit number in java

AurA Thilo Thilo k 89 89 gold badges silver badges bronze badges. Crap, almost 24hrs and I totally forgot to accept this answer! My bad! To make it short: import java. Ravi Thapliyal Jost Jost 1, 12 12 silver badges 18 18 bronze badges.

This actually, might be somewhat better. SandiipPatil That won't compile. Could it be easier?Given a very large number, print all the 3 digit repeating numbers with their frequency.

If a 3 digit number appears more then once, print the number and its frequency. Approach: Since the number is very large, it is stored in a string. Initially, the first three-digit number will be the first three characters from the left. Increase the frequency of the number in the hash map.

how to print 3 digit number in java

In the end, when all the 3-digit numbers are generated, print all the numbers which have a frequency of more than 1. Below is the implementation of the above idea:. Attention reader! If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute. See your article appearing on the GeeksforGeeks main page and help other Geeks. Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.

Writing code in comment? Please use ide. Python3 program to print. Hashmap to store the. Output the three digit. Input string. Calling Function. This code is contributed by Chitranayal. Add val, 1. ContainsKey val.To understand this example, you should have the knowledge of the following Java programming topics:.

In this program, while the loop is iterated until the test expression num! On each iteration, the value of num is divided by 10 and count is incremented by 1. Since, for loop doesn't have a body, you can change it to a single statement in Java as such:. Course Index Explore Programiz. Java for Loop. Arrays in Java. Interfaces in Java. Java ArrayList. Popular Examples Check prime number. Print the Fibonacci series.

Print Pyramids and Patterns. Multiply two matrices. Find the standard deviation. Reference Materials String. Start Learning Java. Explore Java Examples. Java Examples Check Leap Year. Check Whether a Number is Positive or Negative. Check Whether a Character is Alphabet or Not. Calculate the Sum of Natural Numbers. Find Factorial of a Number.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I have numbers like, etc. I would like to have the individual digits, for example for the first number I want to have 1, 1, 0, 0. Note: As Paul noted, this will give you the numbers in reverse order. You will need to push them onto a stack and pop them off in reverse order.

How to Extract digits from String in Java - Programming for Selenium - Webdriver Interview Questions

In case you're already on Java 8 and you happen to want to do some aggregate operations on it afterwards, consider using String chars to get an IntStream out of it.

If you would like to maintain the order of the digits from least significant index[0] to most significant index[n]the following updated getDigits is what you need:. I noticed that there are few example of using Java 8 stream to solve your problem but I think that this is the simplest one:. To be clear: You use String. At the end you use toArray method to change your stream into an int[] array. I suggest you use a little bit of recursion to solve your problem.

This post is very old, but it might be helpful to future coders. Easier way I think is to convert the number to string and use substring to extract and then convert to integer.

Java 9 introduced a new Stream. This can be used to get all the digits in the number, using the modulo approach. Note that this will get the digits in reverse order, but that can be solved either by looping through the array backwards sadly reversing an array is not that simpleor by creating another stream:. I wrote a program that demonstrates how to separate the digits of an integer using a more simple and understandable approach that does not involve arrays, recursions, and all that fancy schmancy.

Here is my code:. Here is my answer, I did it for myself and I hope it's simple enough for those who don't want to use the String approach or need a more math-y solution:.

Print all 3 digit repeating numbers in a very large number

So I just get the units, print them out, substract them from the number, then divide that number by 10 - which is always without any floating stuff, since units are gone, repeat. Since I don't see a method on this question which uses Java 8, I'll throw this in. This gets the characters in the String as a IntStreammaps those integer representations of characters to a numeric value, boxes them, and then collects them into a list. This uses the modulo 10 method to figure out each digit in a number greater than 0, then this will reverse the order of the array.

This is assuming you are not using "0" as a starting digit. This is modified to take in user input. This array is originally inserted backwards, so I had to use the Collections. Just to build on the subject, here's how to confirm that the number is a palindromic integer in Java:.

I'm sure I can simplify this algo further. Yet, this is where I am. And it has worked under all of my test cases. Notice the last method calls getDigitsOf method too much time. So it will be slower.Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available.

Earlier you saw the use of the print and println methods for printing strings to standard output System. Since all numbers can be converted to strings as you will see later in this lessonyou can use these methods to print out an arbitrary mixture of strings and numbers. The Java programming language has other methods, however, that allow you to exercise much more control over your print output when numbers are included. The java. These methods, format and printfare equivalent to one another.

The familiar System. Thus, you can use format or printf anywhere in your code where you have previously been using print or println. For example. The syntax for these two java. PrintStream methods is the same:.

How to get the biggest digit from a number?

A simple example would be. The first parameter, formatis a format string specifying how the objects in the second parameter, argsare to be formatted. The format string contains plain text as well as format specifierswhich are special characters that format the arguments of Object The notation Object The converter is a character indicating the type of argument to be formatted.

There are many converters, flags, and specifiers, which are documented in java. The output is:. The printf and format methods are overloaded. Each has a version with the following syntax:. To print numbers in the French system where a comma is used in place of the decimal place in the English representation of floating point numbersfor example, you would use:.

The following table lists some of the converters and flags that are used in the sample program, TestFormat. The following program shows some of the formatting that you can do with format. The output is shown within double quotes in the embedded comment:. You can use the java. DecimalFormat class to control the display of leading and trailing zeros, prefixes and suffixes, grouping thousands separators, and the decimal separator.

how to print 3 digit number in java

DecimalFormat offers a great deal of flexibility in the formatting of numbers, but it can make your code more complex. The example that follows creates a DecimalFormat object, myFormatterby passing a pattern string to the DecimalFormat constructor. All rights reserved. Hide TOC. Numbers and Strings. The printf and format Methods The java. For example, System. Calendar; import java. PI; System. Using String.Much better to have 2 distinct variables.

That will help avoid confusion …. I don't understand how it could even compile. On line 6 you call method max numberhowever That will help avoid confusion like passing in a number "max", but then analysing "num" instead. Sorry about the method name. I was changing some names in the program to make it look better and I forgot to change the max number to maximum number. Also I am kind of lost about methods. I don't know at the end what exactly should I return?

And if the user enters the number in the main method, how can I use it in the other method? Your structure is basically right - you get a number from the user in main, pass it to maximum as a parameter, maximum returns the answer to main, main prints it.

You just got your variables all mixed up in the maximum method. Think about what you are trying to accomplish in your maximum method. Pass the parameter in you're doing that, but give it a different name. Get the digits using your while loop which you are doingtesting the digit against your maxDigit.

Return maxDigit. It's rather simple, but we can't just GIVE you the code. Good Luck! I really need a answer for this question.

Printing All Possible Combinations of a 3 Digit Number Java Program

I'm studying for Java programming. Hope for a answer soon. I'm VietNamese. I say English not good.Make sure that you check the code that comes with the status attribute to make sure that the model creation has been completed without errors. This is the date and time in which the model was created with microsecond precision.

It has an entry per each field type (categorical, datetime, numeric, and text), an entry for preferred fields, and an entry for the total number of fields. It includes a very intuitive description of the tree-like structure that makes the model up and the field's dictionary describing the fields and their summaries.

In a future version, you will be able to share models with other co-workers or, if desired, make them publicly available. This is the date and time in which the model was updated with microsecond precision. A Model Object has the following properties: Creating a model is a process that can take just a few seconds or a few days depending on the size of the dataset used as input and on the workload of BigML's systems.

The model goes through a number of states until its fully completed. Through the status field in the model you can determine when the model has been fully processed and ready to be used to create predictions. Support is a number from 0 to 1 that specifies the minimum fraction of the total number of instances that a given branch must cover to be retained in the resulting tree. If you repeat the support parameter in the query string, the last one is used.

Non-parseable support values are ignored. Value is a concrete value or interval of values (for regression trees) that a leaf must predict to be kept in the returning tree. Intervals can be closed or open in either end. Confidence is a concrete value or interval of values that a leaf must have to be kept in the returning tree. The specification of intervals follows the same conventions as those of value. Since confidences are a continuous value, the most common case will be asking for a range, but the service will accept also individual values.

It's also possible to specify both a value and a confidence. Finally, note that it is also possible to specify support, value, and confidence parameters in the same query. Filtering and Paginating Fields from a Model A model might be composed of hundreds or even thousands of fields.

Thus when retrieving a model, it's possible to specify that only a subset of fields be retrieved, by using any combination of the following parameters in the query string (unrecognized parameters are ignored): Fields Filter Parameters Parameter TypeDescription fields optional Comma-separated list A comma-separated list of field IDs to retrieve.

To update a model, you need to PUT an object containing the fields that you want to update to the model' s base URL. Once you delete a model, it is permanently deleted. If you try to delete a model a second time, or a model that does not exist, you will receive a "404 not found" response. However, if you try to delete a model that is being used at the moment, then BigML. To list all the models, you can use the model base URL.

By default, only the 20 most recent models will be returned. You can get your list of models directly in your browser using your own username and API key with the following links.