I am trying to make a program that prints triangle... and I did various test on each method to realise that the problem lies with this segment.When I call this method, nothing prints out, I figure there is something with the loop that I am not realizing.the loop is backwards because it's supposed to have the right side edge parralel (when I try to print it out the spaces do not appear, imagine the x are space...), so as each line is looped the # of spaces diminishes
xxxx*
xxx*x*
xx*xx*
x*xxx*
*****
public class test {
public static void main(String[] args){
for (int countdown = 5; countdown <= 1; countdown = countdown--){
showNTimes(countdown, ' ');
showNTimes(5- countdown, '*');
System.out.println("");
}
}
public static void showNTimes ( int nbTimes, char carac ) {
for ( int i = 1 ; i <= nbTimes ; i = i + 1 ) {
System.out.print( carac );
}
}
}
class shape{ public static void main(String [] args){ for(int x =0 ; x<=6;x++){ for(int y =0 ; x > y ; y++){ System.out.print(x); } System.out.print(" "); } } }
The program needs to print an isosceles triangle depending on variables Height, BorderSymbol and Interior symbol, how to do that. Here is what i did so far :
{ int height = 5; int i = 0; int count = 0; String line = "";
[code]....
and the output is a blanc page nothing on the screen only spaces...
I am trying to print a loop inside an array of a greater size than the loop itself. Like for example I have an array of size 7 but it has only 3 elements.
now what I want to do is print these three numbers in a loop so that my array[3]=2;array[4]=3;array[5]=4 ...... till the last one. Also the array could be any size and not just 7.
I'm doing a problem where the area of a triangle is returned (if valid). However, I want to return a message (i.e. 'triangle is not valid) if the triangle is invalid.
I'm not sure how to go about to doing this as my method (called area) will only let me return doubles. Possible to return a string in an else within my area method?
public class MyTriangle { public static void main(String[] args) { //triangle is valid if the sum of any two sides is bigger than the third System.out.println(isValid(3, 4, 5)); System.out.println(area(543, 4, 5));
working on a project but cant seem to get my while loop to restart i want to restart this guessing game if the user inputs y at the end otherwise it will end.
import java.util.Scanner; import java.util.Random; public class GuessingGame{ public static void main(String[] args){ Scanner in = new Scanner(System.in); String again = "y"; while(again=="y"){
I'm having trouble figuring out why my do-while loop isn't fully working. As you can see, it will loop for the first 2 values of i (1 and 2), but then after that if i doesn't fit in my if or if-else statements, the loop stops.
int iterationNum = 1; int cycle = 0; double denominator = 1.0; double pi = 0.0; double validPrint; int n = 1; do { pi += (4.0 * Math.pow(-1.0, cycle))/denominator;
Alright so I'm trying to write a code that implements a for loop and if statements that displays any number from 100-200 if the number is divisible by either 5 or 6 in rows of ten numbers each row. If it is not divisible by that number then it should go back to the beginning of the loop until it reaches 200. My main problem is that it doesn't display anything. I don't get any errors or anything but every time I run the program it just displays nothing. Sample output is at the bottom of the code.
public class Exercise5_11 { public static void main(String[] args) { int count = 0; int i = 100; //for (the numbers from 100 to 200) for (i = 100; i>100 && i<200; i++){
This is supposed to be a method that adds stars after each item in the list.
Java Code:
import java.util.ArrayList; public class ClientProgram { public static void main(String[] args) { ArrayList<String> list = new ArrayList<String>(); list.add("the");
[Code] ...
I'm guessing it's because list.size() changes, though but it should only find that value in the beginning, so it shouldn't be a problem?
On line 45 i am trying to add "-" symbol to my output phone number. As of now the out prints like "1800*45*3569377. I want it to print 1800-3569377, or even more ideal: 1-800-356-9377. When printing normally (system.out.println) I can print symbols, but when I try to print from a for-loop it says "unclosed character literal." import java.util.Scanner;
public class Phone_010473030 { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Enter a phone number string: "); String Phone_num = input.nextLine(); Phone_num = Phone_num.toUpperCase();
There's loads of problems with this. What I'm trying to do.
1) get a program to add the contents of an array together, preferably with a for loop and not the heavy handed version I've tried to use here.
2) get the for loop's output just once, since it won't compile or recognise the variable outside of the loop. How do I make the loop's 'counter' variable available everywhere?
public class retint { public static void main(String[] args){ int[] onetoTen = {1,2,3,4,5,6,7,8,9,10}; for (int i=0; i<10; i++) { int counter = (onetoTen[0] + onetoTen[1] + onetoTen[2] + onetoTen[3] + onetoTen[4] + onetoTen[5] + onetoTen[6] + onetoTen[7] + onetoTen[8] + onetoTen[9]); System.out.println(counter); } }
Terrible code, I know. There has to be a more efficient way.
I am working on my java program it prints out a table of angles and the sin, cos, and tan. For extra credit he wanted us to use nest loops to create a space after every five lines. I have come real close to getting this to work but have a problem with the very end of the table. The table needs to stop at 180...
public static void printTable(double angle,double sin,double cos,double tan) { // Method to create a table for the values for (double j = 0; j <= 180;) { for (double i = 1; i <= 5; i++) {//loop to print five lines of code angle = Math.toRadians(j);
Prompt the user to enter two ints, firstNum and secondNum. Then print all odd numbers between firstNum and secondNum.
Here's my code-- my error is in this line: for(firstNum;firstNum<=secondNum;firstNum++)
The error is "not a statement."
import java.io.*; import java.util.*; public class ListOddNumbers { public static void main(String[] args) { Scanner keyboard= new Scanner(System.in); System.out.println("Enter your first number."); int firstNum= keyboard.nextInt();
My issue is that when I run my search, it does find a goal. However, when I try and print the route using my print route method, it just gets stuck in a loop of printing the same two nodes. What is wrong with My A* implementation?
I had to write a foor loop to count the values of a stack of quarters from 1.00 to 3.00 and I had to print the values, that I understood and got it working so I taught the next assignment was going to be easier but I am having a hard time with it. For this one I have to write a for loop to print all the positive integer factors of 144 and I am supposed to print of factor per line but I tried doing that but it doesn't work it just prints out 144.
This is my code. The quarter assignment is also in there because it is part of a lab so just ignore that part since it is working correctly.
public class ForLoopPractice { public static void main(String [] args) { // Write a for loop to count out the values of a stack of quarters from $1.00 to $3.00 // Print the value of each iteration. Print this all on one line, rounded to the nearest cent. // To print rounded, use printf, with a placeholder of %.2f // (%f is the floating-point placeholder; the .2 indicates the number of decimal places) /* YOUR CODE HERE */ for (double q = 1.00; q <= 3.00; q += .25)
I am trying to invoke some methods in a for loop in order to print some info stored in a List. But for some reason, compiler pops a message saying "cannot find symbol - method getEmpID(). You are using a symbol here (a name for a variable, method or class) that has not been declared in any visible scope." But I am pretty sure that method getEmpID (as also getName(), getAfm(), and payment() ) have been declared as public.
Note: My List contains objects of different type (SalariedEmployee, HourlyEmployee). I hope this is not the factor causing this problem.
Java Code:
import java.util.*; abstract class Employee{ private String name = ""; private String afm = ""; private long EmpID; static long count=0;
I am developing an application to share my client screen with server, it is working well on swing. But i want to develop as web application, i am trying to using applet. But i am facing the fallowing problem..,
1) The Applet screen also open and project also running well on server mechine. But unable to see the client screen on the server.
2) The problem may be to display the JDesktopPane or JInternalFrame.
My working Server Code extends withe JFrame..Java Code:
A triangle is defined by the x- and y- coordinates of its three corner points. Compute the following the following properties of a given triangle: the lengths of all sides, the angles at all corners, the perimeter and the area. The program must prompt a user for the point coordinates. I have created a class Triangle and a class TriangleSimulator, I am stuck and can't figure out why my program won't run correctly.
import java.util.Scanner; public class Triangle { Scanner in = new Scanner(System.in); private int x1; private int x2; private int x3;
