Write a program using while loop in java

If you find difficult to understand the for loop, please refer For Loop article here: Here, we are calling the SumofDigits Number method. If we create a function with Void then there is no need to return any value but, if we declared a function with any data type int, float etc then we have return something out from the function.

Write a program using while loop in java

How many levels the pyramid triangle would have will be decided by the user input.

Try It Yourself. Here's an exercise you should complete using DrJava's Interactions Pane. Create a Random number generator. Remember that you have to import the feelthefish.com package.; Write a while loop that generates random integers (both positive and negative). (Use Shift+Enter in the Interactions Pane to avoid running immediately.). Java Loops & Methods. The while loop. Syntax: while (condition is true) { So what if you accidentally write an infinite loop in your program? Everyone does at some point! Often your only clue is lines of output streaming by on the Console or you see nothing • If the loop might need to be skipped, use a while loop. Oct 14,  · Best Answer: "For" loops are more professional than "While" loops in this problem, because you know the specific number of rows and asterisks. While loops are used when you don't know the number of repetitions. Here it is in Java, but you can modify it to whatever language you are usingStatus: Resolved.

You can print this kind of pattern by using print and println method from System. You can also use Scanner class to get input from the user and draw pyramid up to that level only.

Java For Loop: How to use loops in Java

For example in above diagram, the pyramid has 5 levels. In programming, to do a task repeatedly e. This kind of problem, which require printing in row and column usually require two loops, one inside another.

Also, known as nested loops. You can use for loop to create this pattern as shown below: Java Program to Print Pyramid Pattern Here is our Java program to draw the pyramid pattern as shown in the problem statement.

write a program using while loop in java

In this program, we have two examples of printing pyramid, in first we have printed pyramid of star character, while, in the second example, we have drawn a pyramid of numbers. The key here is to use both print and println method from PrintStream class, which is also easily accessible as System.

Sample code in Java to Print the Pyramid Pattern import java. Pyramid pattern of star in Java: You can even modify this program to print pyramid of numbers.Imagine you need to print a sentence 50 times on your screen.

Well, you can do it by using print statement 50 times (without using loops). How about you need to print a sentence one million times?

You need to use loops. It's just a simple example. You will learn to use while and feelthefish.com loop to write some interesting programs in this article.

List of Java Programs

program/loop for such a small case in a way that will make it easy to generalize. For example, the next exercise for the reader asks to write a for loop to compute .

Write a program to convert string to number without using feelthefish.comnt() method. Write a program to find two lines with max characters in descending order. Write a program to find the sum of the first prime numbers. Write A C++ Program To Find The Average Of N Numbers Using Do-While Loop.

Iteration Statements or Loops in C++ Write A C++ Program To Check Whether The Candidate's Age Is .

Print The Story

End-of-file-Controlled WHILE Loop A while loop is often used to repeatedly read data. When a program uses a stream to read data, the stream state (as described in Chapter 5 Section 5) is set after each read from the input data stream. Dec 02,  · We write a program that asks the user for some numbers and then prints out the sum of these numbers.

Simple And Advanced Java Programs: Java Program For Pyramid Of Numbers