Latest Tutorials| Questions and Answers|Ask Questions?|Site Map



Home Answers Viewqa Java-Beginners nested for-loop
Login         

View Questions and Answers by Category

Advertisements


 
Have Programming Question? Ask it here!
 
 
 


simon ledwaba
nested for-loop
1 Answer(s)      2 years and 9 months ago
Posted in : Java Beginners


hi.write a program that will prompt the user for a positive integer(num) and then display two triangles with num number of lines to represent the following patterns of asterisks. the input num must be validated, and if invalid, the user must be allowed a maximum of 3 tries to enter the correct value.

e.g if the user enters 2,the program must display the following patterns:

*

**

**

*


Advertisement
View Answers

April 9, 2012 at 4:24 PM


import java.util.*;
class Triangle 
{
    public static void main(String[] args) 
    {
        Scanner input=new Scanner(System.in);
        System.out.print("Enter positive number: ");
        int num=input.nextInt();
        for(int i=1;i<=num;i++){
            for(int j=1;j<=i;j++){
                System.out.print("*");
            }
            System.out.println();
        }
           for(int i=num;i>=1;i--){
           for(int j=1;j<=i;j++){
               System.out.print("*");
           }
           System.out.println();
       }

    }
}


Related Tutorials/Questions & Answers:
nested for-loop
nested for-loop  hi.write a program that will prompt the user for a positive integer(num) and then display two triangles with num number of lines to represent the following patterns of asterisks. the input num must be validated
Nested Loop - Java Beginners
Nested Loop  Hi, Can anyone tell me example of Nested loop in Java? Thanks   Hi friend,public class NestedExample{ public static void main(String[] args){ /** Print Pattern I */ System.out.println("
Advertisements
Nested class
Nested class  What is nested class?  when a class is defined within another class then such a class is called a nested class. Nested... nested classes are: It is a way of logically grouping classes that are only used
nested loops
nested loops  please tell input to get the output: 12345 23456 34567 45678
loop
loop  i want to write my name(inder) through loop in java using star
loop
loop  what is the difference b/w do while,while and for loop..with example
for loop
for loop  what is for loop   Loops are used for iteration... for a number of times it is finite loop and if repetition is done infinitely it is infinite loop. Java provides several loop structures for iteration. Those
For loop
For loop  Hi! Please explain the following loop: for(i=0;i<a[j];i++) THANX!!   Please reply as soon as possible
for loop
for loop  how to performs the for loop when 2 inputs given like displays the triangle shape and how to take initial values or declaration values plz explain in detailed ex. 1 12 123 1234
nested for loops
that the problem lies with my nested for loop which calculates all information...nested for loops  Hello all, I have created a program(gui) that allows a user to input time and minutes in textfields and then calculates
Loop
to understand a loop my quesiton are: what du i do wrong in my code since.... (made in blueJ) Class Loop public void loopUpGeneral(int start, int stop... dk  Hi, Please check the for loop once again: for (int i
For Loop
For Loop  Write a program using a for loop that computes the following sum: 1/2 + 2/2 + 3/2 + 4/2 + 5/2 + ... N/2 N will be an integer limit the user enters. This is an example of my upcoming quiz. I need help on knowing
Nested try
Nested try  Hi, In eclipse without providing input i am getting different outputs ie my exception gets executed first then finally block and vice versa.pl explain me class Demo { static void nestedTry(String args[]) { try
for loop
for loop  using only two for loop how can print below numbers 1 2 2 3 3 3 4 4 4 4 5 5 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 8 8 8 8 8 8 8 8 7 7 7 7 7 7 7 6 6 6 6 6 6 5 5 5 5
for loop
for loop  using only two for loop how can print below numbers 1 2 2 3 3 3 4 4 4 4 5 5 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 8 8 8 8 8 8 8 8 7 7 7 7 7 7 7 6 6 6 6 6 6 5 5 5 5
loop
loop  strong textHello can someone help me with this problem,I need to output the following code using a loop the code is as follows with the user inputs in inverted commas,thanks. ENTER CODE(XX to Stop) CODE:"D24" QUANTITY:"2
Nested try
Nested try  Each time when i execute this code in eclipse i get different answers pl help me with this code class Demo { static void nestedTry..., visit the following link: Nested Try Example
program to create nested tables
program to create nested tables  program to create nested tables
Nested classes: Examples and tutorials
Nested classes: Examples and tutorials       Nested classes Here is another advantage of the Java... within another class, such class is called a nested class. Inner classes can
The nested class - Java Beginners
The nested class  Hi, What is nested class in Java? What is the benefits of nested class? Write examples of nested class. Thanks   .../java/n/java-nested-class.shtml Thanks
GROUP BY IN NESTED QUERY
GROUP BY IN NESTED QUERY  Hello Every One, Query to use GROUP BY CLAUSE IN NESTED QUERY SELECT STATEMENT in mysql database.If u know please help me.thanks
Java nested class example
Java nested class example  Give me any example of Nested Class.   Nested Class: Class defined within another class is called nested class. Nested class is divided into two parts- 1.Static 2.Non-static Static
Need help with nested queries
Need help with nested queries  Hello, Table1 has "id", "votes" columns. Table2 has "id", "Name" column. I need to retrieve Name and its corresponging Votes. I tried with nested queries but its confusing. Can anyone please help
Nested and Inner classes
Nested and Inner classes  What is the significance of Inner Classes and Static Inner Classes? or Why are nested classes used?   Hi Friend... a nested class. Inner class is a non static class declared inside another class.Non
Nested If Statement
Nested If Statement       In this section you will study about the Nested-if Statement in jsp. Nested If statement means to use the if statement inside the other if statement
Using Nested loops
Using Nested loops  How to use nested loops in java when I want to print the 10 multiples of numbers 2 to 15(in multiplication table)   public class MultiplicationTable{ public static void main(String[] args) { int
for loop in java
for loop in java  54321 4321 321 21 1 using for loop or nested 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 5 4 3 2 1 4 3 2 1 3 2 1 2 1 1 using for loop or nested... 8 9 6 7 8 9 10 all for loop code plz friends guide me
for loop in java
for loop in java  54321 4321 321 21 1 using for loop or nested 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 5 4 3 2 1 4 3 2 1 3 2 1 2 1 1 using for loop or nested... 8 9 6 7 8 9 10 all for loop code plz friends guide me
for loop in java
for loop in java  54321 4321 321 21 1 using for loop or nested 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 5 4 3 2 1 4 3 2 1 3 2 1 2 1 1 using for loop or nested... 8 9 6 7 8 9 10 all for loop code plz friends guide me
for loop in java
for loop in java  54321 4321 321 21 1 using for loop or nested 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 5 4 3 2 1 4 3 2 1 3 2 1 2 1 1 using for loop or nested... 8 9 6 7 8 9 10 all for loop code plz friends guide me
for loop in java
for loop in java  54321 4321 321 21 1 using for loop or nested 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 5 4 3 2 1 4 3 2 1 3 2 1 2 1 1 using for loop or nested... 8 9 6 7 8 9 10 all for loop code plz friends guide me
Advertisements
 

 

 

DMCA.com