Semicolon After For Loop Is Not Necessary
Jun 15, 2014
I'm fairly new to programming, just started yesterday with a book I downloaded of the net. The book comes with a couple of examples on how to code and they all seem to work fine except for this loop.
class fordemo {
public static void main(String args[] ) {
int count;
for(count = 0; count < 5; count = count+1);
System.out.println(" This is count: " + count);
System.out.println("Your are all done! ");
}
}
I can't seem to find the problem. All it gives me is,
"This is count: 5
You are all done!"
When it's supposed to give me,
"This is count: 1
This is count: 2
This is count: 3
This is count: 4
You are all done!"
Found the error, semicolon after the for loop is not necessary. Should be...
class fordemo {
public static void main(String args[] ) {
int count;
for(count = 0; count < 5; count = count+1)
System.out.println(" This is count: " + count);
System.out.println("Your are all done! ");
}
}
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Jan 27, 2015
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.
int[] array=new int[7]
array[0]=2;
array[1]=3;
array[2]=4;
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.
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Feb 25, 2014
Here's the code: it's while loop inside a for loop to determine the proper length of a variable:
for (int i = 0; i < num; i++) {
horse[i]=new thoroughbred();
boolean propernamelength = false;
while (propernamelength==false){
String name = entry.getUserInput("Enter the name of horse "
[code]....
I was just wondering what was going on here -- I've initialized the variable, so why do I get this message? (actually the carat was under the variable name inside the parentheses.
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Nov 2, 2014
I have everything else working. My problem is that when i type "quit" to close the outer loop. It still runs the inner loop. The National Bank manager wants you to code a program that reads each clients charges to their Credit Card account and outputs the average charge per client and the overall average for the total number of clients in the Bank.
Hint: The OUTER LOOP in your program should allow the user the name of the client and end the program when the name entered is QUIT.In addition to the outer loop, you need AN INNER LOOP that will allow the user to input the clients charge to his/her account by entering one charge at a time and end inputting the charges whenever she/he enters -1 for a value. This INNER LOOP will performed the Add for all the charges entered for a client and count the number of charges entered.
After INNER LOOP ends, the program calculates an average for this student. The average is calculated by dividing the Total into the number of charges entered. The program prints the average charge for that client, adds the Total to a GrandTotal, assigns zero to the Total and counter variables before it loops back to get the grade for another client.Use DecimalFormat or NumberFormat to format the numeric output to dollar amounts.
The output of the program should something like this:
John Smith average $850.00
Maria Gonzalez average $90.67
Terry Lucas average $959.00
Mickey Mouse course average $6,050.89
National Bank client average $1,987.67
Code:
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
String name = "";
int charge = 0;
int count = -1;
int total = 1;
int grandtotal = 0;
int average = 0;
[code]....
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Mar 8, 2014
How to convert this program from a while loop to a for loop.
import java.util.Scanner;
public class LongDivision {
public static void main(String arguments[]){
Scanner input = new Scanner(System.in);
System.out.println("Enter the dividend: ");
[Code] ....
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Feb 17, 2014
How do I convert my for loop below to a while and do while loop?
for(int a=1;a<=9;a++){
for(int b=1;b<=a;b++){
System.out.print(a);
}
System.out.println();
[Code] .....
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Feb 9, 2015
I am trying to make a program add values from a loop. So what its supposed to do is search through tokens on an imported file. The file lists State, Capital, and then capital population. Then take the population string, turn it into numbers, and then do stuff with the numbers. First I'm supposed to find the Highest and lowest population of the places in the file (which I did without problem), but the finally thing is I'm supposed to add each found population to the last so I can find the average of the populations.
I just cannot seem to grasp how to do that. I THINK I'm supposed to some how store the given value into a variable, but how do I get that variable to add to the new value?
like...?
Get token -> a
b = a
c = a + b
or wait no.....
Java Code :
import java.io.*;
import java.util.Scanner;
public class CapPopS
{
public static void main(String[] args) throws IOException
{
File stateCAP = new File("state-capital-2004population.txt");
if (!stateCAP.exists())
[Code] ....
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package StudentInfo;
import java.util.Scanner;
public class studentinfo {
public static void main (String [] args){
Scanner scan = new Scanner(System.in);
[code]....
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Apr 5, 2014
I need to write a program that measures how long it will take someone to make a million dollars if he is being paid $5.75 an hour, but the pay rate is increase by 0.2% each week after the third week.
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This is the first time I've ever gotten an infinite loop with a FOR loop. This program is supposed to let you enter five integer numbers and draw a bar chart based on those numbers. After the fifth number is entered, guess what? It wraps back around to zero again and starts over! Why the bleep doesn't it stop? The code is below:
Java Code: import java.awt.Graphics;
import javax.swing.JPanel;
import java.util.Scanner;
[Code]...
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Mar 23, 2015
Can i write inner if loop without { and } if it has more lines of code as below
public class TEst111 {
/**
* @param args
*/
public static void main(String[] args) {
int num=11;
// TODO Auto-generated method stub
if (num < 10)
[code]....
I tested to see outer if which does not need { and } even though it has multiple lines in that
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Aug 3, 2014
I just started to teach myself loops. I am trying to convert the while loop into for loops, however somehow I do not get the same printout.
While loop:
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
int i = 1;
int sum = 0;
[Code] ....
Print:
sum is 0 and i is 1
sum is 1 and i is 2
sum is 3 and i is 3
sum is 6 and i is 4
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Mar 11, 2014
Create a loop where you add the integers from 1 to 50.
public class Sum50 {
public static void main(String[] args) {
int sum = 0;
int max = 50;
for(int i = 0;i <= max; i++){
sum=sum+i;
}
System.out.println("Sum is " + sum);
}
}
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import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class HardestGame extends Applet
implements KeyListener, MouseListener {
final int WIDTH = 400;
final int HEIGHT = 123;
int myX = 400;
int myY = 400;
[code]...
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Jun 9, 2014
I wrote a program using switchcase.I used do while to show the menu to the user until the user decides to exit the menu.I used try catch to prevent ant exception and it worked properly.But i got one problem.When exception occurs,desired msg is printed but i am unable to display the menu to the user.So user wont be able to continue after an exception is caused.
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If I for example choose 8 as "multiplikationstabell" and 4 as "faktor" the whole code works except that "svar" gets printed as 8 in every turn. Why? "Faktor" gets added with 1 every time but "svar" stays at 8.......
import java.util.Scanner;
public class Multiplikationstabell {
public static void main(String args[]){
Scanner Heltal = new Scanner(System.in);
[Code] .....
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PHP Code:
public static void drawFirstHalf() {
for (int line = 1; line <= SIZE; line++) {
System.out.print("|");
for (int dots1 = 1; dots1 <= SIZE - line; dots1++) {
printDot();
[Code] ....
How would I get rid of the redundancy of the dots1 and roof for loop in the nested for loop? The lines are just repeated and I'm not sure how to get rid of the redundancy.
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Sep 14, 2014
I am doing a simple program, just to find multiples of 7 all the way to 125. But the loop its not stopping at 125 and is going to 126.
public class Assingment2B {
public static void main(String[] args) {
int number = 0;
while (number <= 125) {
number += 7;
if (number % 7 == 0) {
System.out.println(number);
[code]....
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Apr 5, 2014
just trying to learn it on my spare time and I'm doing do-while loops
public class help {
public static void main (String args[])
throws java.io.IOException {
char choice, ignore;
do{
System.out.println ("Choose one:");
System.out.println("1. if");
System.out.println("2.switch");
[code]....
It makes no difference in the program wither i delete this block or keep it..how while (choice < '1'| choice >'2'); translates? I would assume it would be while (choice >= '1'| choice =<'2');?
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i want to make an while loop that uses a bigInteger. but it want do it, so what do i do?
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Dec 11, 2014
I need to add a kb.nextLine(); somewhere but I've tried adding it after nextInts and it hasn't worked. The problem is in the test.
public class Account{
//instance variables
private static double annualInterestRate;//this is the class variable
private int id;
private double balance;
private java.util.Date dateCreated; //creates an object from the date class in java
[code]....
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Mar 11, 2014
I'm developing a Swing Project and I have a textarea in which the item names will be entered separating with commas. The code has to check every element and fetch the price of it and calculate the total amount and display it in the text field. But Somehow it does not enter the while Loop? Why?
Here is the code
String str = accessories.getText();
accessories.setText(str.toUpperCase());
String[] str_arr = accessories.getText().split(",");
float t1 = 0;
float t2 = 0;
for (int i = 0; i < str_arr.length; i++) {
System.out.println(str_arr[i]);
System.out.println("
[code]....
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Oct 23, 2014
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PI = 3 + 4/(2*3*4) - 4/(4*5*6) + 4/(6*7*8) - 4/(8*9*10) + ...
Allow the user to specify the number of terms (5 terms are shown) to use in the computation. Each time around the loop only one extra term should be added to the estimate for PI.
Alter your solution from part one so that the user is allowed to specify the precision required between 1 and 8 digits (i.e. the number of digits which are correct; e.g. to 5 digits PI is 3.14159), rather than the number of terms. The condition on the loop should be altered so that it continues until the required precision is obtained. Note that you need only submit this second version of the program (assuming you have it working).
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Mar 11, 2015
import javax.swing.*;
public class BasicCalculator{
public static void main (String[] args) {
String output="";
double n1,n2;
String operation;
operation= JOptionPane.showInputDialog("Please enter your operation");
[Code] ....
How to add a loop in this problem:
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Oct 5, 2014
I just wanted to restrict a user to use numbers in a range so i made a while loop but it gets completely ignored
Java Code:
num1 = input.nextInt();
while(num1 < 0 || num1 > 1000){
System.out.println("reEnter First Number:");
num1 = input.nextInt();
} mh_sh_highlight_all('java');
int num1 is declared as an int so not sure why it is not working when entering a number less then or greater then 1000...
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Dec 17, 2013
Question: you are only allowed to use numbers from 1-6. Write a program to find all the permutations when three numbers are multiplied together to give a result 8. one number cannot occur twice in any permutation.
public class number4
{ public static void main(String[] args)
{
for(int a=1; a<=4; a++)
{
for(int b=1; b<=4; b++)
{
[Code]...
my program also prints out 2 2 2. but i'm not allowed to do that. how can I stop it from printing 2 2 2 ?
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