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import java.util.Scanner;

public class player{

private String name;
private double balance;
Scanner reader;

public player(){
name = “”;
balance = 0;
reader = new Scanner(System.in);
}

public player(String n){
name = n;
balance = 50;
reader = new Scanner(System.in);
}

public String getName(){
return name;
}

public double getBalance(){
return balance;
}

}

————————————–

import player.class
import java.util.Scanner;

public class casino{

public static void main(String[] args){

Scanner scanner = new Scanner(System.in);
System.out.println(”Good day. What’s your name.”);
new casino(scanner.nextLine());
System.out.println(getName() + “, What would like to do?”);
}

}

By: John

*/
import java.util.Scanner;
public class BMI
//import the Scanner class //class declaration
{

public static void main(String [] args) //beginning of main method
{

Scanner in = new Scanner(System.in);
int userWeightLbB = 0;
int userWeightInB = 0;
double userWeightKg = 0;
int index = 0;
int second = 2;

System.out.print(”Enter your name (first last): ” );
String userName = in.next();
System.out.println();

System.out.print(”Enter your weight in pounds ( e.g. 175): “);
String userWeightLb = in.next();
userWeightLbB = Integer.parseInt(userWeightLb);
System.out.println();

System.out.print(”Enter your height in feet and inches ( e.g. 5 11): “);
String userHeightIn = in.next();

//converters
userWeightKg = userWeightLbB * 0.45358237;
userHeightIn = (feet * 12) + inches ;

}
}
I figured that in David, and now I’m getting a compiler error on
userHeightIn = (Feet * 12) + Inches ;

something like found int but expected string
it compiles fine but doesn’t do so well when you actually use it. please help

/**
* Write a description of class BMI here.
*
* @author (your name)
* @version (a version number or a date)
*/
import java.util.Scanner;
public class BMI
//import the Scanner class //class declaration
{

public static void main(String [] args) //beginning of main method
{

Scanner in = new Scanner(System.in);
int userWeightLbB = 0;
int userWeightInB = 0;
double userWeightKg = 0;
double userHeightInches = 0;
double userBMI = 0;
double userHeightMeters = 0;
int index = 0;
int second = 2;
String totalUserBMI = “”;

System.out.print(”Enter your name (first last): ” );
String userFirstName = in.next();
String userLastName = in.next();
System.out.println();

Sy

By: white.rabbit_y2k

import java.util.Scanner;
import javax.swing.JFileChooser;

public class StringChanger {

public static void main(String[] args) throws Exception{

JFileChooser fileChooser = new JFileChooser();
if (fileChooser.showOpenDialog(null)
== JFileChooser.APPROVE_OPTION){
java.io.File file = fileChooser.getSelectedFile();

Scanner input = new Scanner(file);

while (input.hasNext()){
System.out.println(input.nextLine());

file.length();
System.out.println(file.length());
int count = 0;
for (int i = 0; i < file.length(); i++){
char c = file.charAt(i);
if (c=='4'){
count++;

}
}
System.out.println(count);

}

}
}

}
import java.util.Scanner;
import javax.swing.JFileChooser;

public class Project4 {

public static void main(String[] args) throws Exception{

JFileChooser fileChooser = new JFileChooser();
if (fileChooser.showOpenDialog(null)
== JFileChooser.APPROVE_OPTION){
java.io.File file = fileChooser.getSelectedFile();

Scanner input = new Scanner(file);

while (input.hasNext()){
System.out.println(input.nextLine());

file.length();
System.out.println(file.length());

int[] count = countNumbers(file.);

for (int i= 0; i < count.length; i++){
if (count[i] !=0)
System.out.println((char)('4' + i) + " appears " +
count[i] + ((count[i] == 1) ? " time" : " times"));
}
}
}
}

public static int[] countNumbers(String file){
int [] count = new int[20];

for (int i = 0; i < file.length(); i++){
if (Character.isLetter(file.charAt(i)))
count[file.charAt(i) - '4']++;

}return count;

}
}

By: franklinanthony

The driver is

import java.util.Scanner;

public class DateClass
{
public static void main (String[] args)
{
String response;
do
{
int m1;
int m2;
int d1;
int d2;
int y1;
int y2;

Scanner scan = new Scanner(System.in);
System.out.println(”Enter a date (seperate with spaces) : “);

m1 = scan.nextInt();
d1 = scan.nextInt();
y1 = scan.nextInt();

Date first = new Date(m1, d1, y1);
System.out.println(”Enter other date (Seperate with spaces) : “);

m2 = scan.nextInt();
d2 = scan.nextInt();
y2 = scan.nextInt();

Date last = new Date (m2,d2, y2);
long difference = first.subtract(last);
System.out.println(”The number of days from “+first+ ” to ” +last+” is ” +difference);
System.out.println(”Are there any more dates that you would like to use? Y/N”);

response = scan.next();
response = response.toUpperCase();
}
while (response.equals(”Y”));

the class is

public class Date
{
private int month;
private int day;
private int year;

public Date(int m, int d, int y)
{
month = m;
day = d;
year = y;
}

public boolean isLeap(int y)
{
if (y%4==0 && y%100!=0)
return true;
else if (y%100==0 && y%400==0)
return true;
else
return false;
}

public int daysInYear (int y)
{
if (isLeap (y))
return 366;
else
return 365;
}

public int daysInMonth (int m, int y)
{
if (m==1 ||m==3||m==5||m==7||m==8||m==10||m==12)
return 31;
else if (m==4||m==6||m==9||m==11)
return 30;
else if (m==2 && isLeap(y))
return 29;
else
return 28;
}

public String toString()
{
return month + ” ” + day + ” ” + year;
}

public long subtract (Date other)
{long total;
if (month==other.month && year==other.year)
total = other.year-day +1;
else if (year==other.year)
{
total = daysInMonth(month,year) - day+1;
for (int i = month+1; i total += daysInMonth (i,year);
total += other.day;
}
else
{
total = daysInMonth (month,year) - day +1;
for (int i = month + 1; i<=12; ++i)
total += daysInMonth(i, year);
for (int i = year +1; i total += daysInYear(i);
for (int i =1; i total += daysInMonth (i,other.year);
total += other.day;
}
return total;
}
}

By: fratisacat14

import java.util.*;
import javax.swing.JOptionPane;
public class ranUnique {

public static void main(String[] args) {

String output=”";
int[] arrayRan=new int[6];int ran2;
for(int ran=0;ran arrayRan[ran]=(int)(Math.random()*50
//validate
for(ran2=0;ran2<=ran;ran2++){
if ((arrayRan[ran]==arrayRan[ran2]) || (arrayRan[ran]==0)) {
arrayRan[ran]=(int)(Math.random()...
//ran=ran-1;
}

}
}
Arrays.sort(arrayRan);
for(int sort=0;sort output=output+ arrayRan[sort]+" ";
}
JOptionPane.showMessageDialog(null,ou...
}
}
Thnx for the suggestions...
as per deonejua alternative..it looks better than the math.random()..but it still does not give me unique numbers and thts wht I am actually having problems with..
as fir using the sets...I will have to keep it for the next semester ..thnx anyway..
And yes it seems like the same lottery modelling which has become a hugely queried topic in the java forums from newbies like me..hehe..hopefully for not too much a dismay for the weathered lots..
thnx for all the suggestion guys...i hve decided to validate it using a do while loop with a boolean method to validate duplicates..ta-da..might come back with more trivial queries...muahh

By: rabbitrun

IllegalFormatConversionException: f != java.lang.Integer

it kept commenting out stuff to find where it was and i think its with year but i dont know how to fix it or why please help

my code:

//******************************************************
// Tara D
// CS1 — 10:00 —
//
// Program Convert: This program calculates and
// prints account balance for a bank account.
//******************************************************
// get numbers from a file, calculate a value for number
// of years passed since hurricane occured, put it in an
// output file, prompt user first and lastname from “console”
// read info from input file, store variables, dollar amounts
// displayed in 4 decimarl places, dont include dollar signs
// dollar amounts 17 characters wide, others 12 characters
// align dollar amounts and calculated years right, other
// left align, DONT FORGET COLUMN HEADINGS, when program
// finished running print 2 blank lines and a message that
// says name and that the program has completed successfully
//******************************************************

import java.util.*;
import java.io.*;
import javax.swing.JOptionPane;

public class hurricanes
{

static Scanner console = new Scanner(System.in);

public static void main (String[] args)throws FileNotFoundException
{

Scanner inFile = new Scanner(new FileReader(”Hurricanes.txt”));
PrintWriter outFile = new PrintWriter(”hurricane.out”);

//declare variables

String hName;
int year;
double damage;
String region;
double femaFunds;

int numYears;
String name;
int todayDate = 2008;
String hurricane = “Hurricane”;
String Year = “Year”;
String total = “Total Damage”;
String Region = “Region”;
String unusedfema = “Unused FEMA”;
String ysince = “Years Since”;

// read account information from file

hName = inFile.next();
year = inFile.nextInt();
damage = inFile.nextDouble();
region = inFile.next();
femaFunds = inFile.nextDouble();

//perform calculations

System.out.print(”Enter the year:”);
todayDate = console.nextInt();

numYears = year - todayDate;

//statements
System.out.print(”Enter your first and last name:”);
name = console.next();

outFile.printf (”%12s”, hurricane);
outFile.printf (”%12s”, Year);
outFile.printf (”%17s”, total);
outFile.printf (”%12s”, region);
outFile.printf (”%17s”, unusedfema);
outFile.printf (”%12s”, ysince);
outFile.printf (”%n”);

/*outFile.printf (” ——— %12s”);
outFile.printf(” —- %12f”);
outFile.printf(” ———— %17f”);
outFile.printf(” —— %12f”);
outFile.printf(” ———– %17f”);
outFile.printf(” ———– %12f”);
outFile.printf (”%n”);

outFile.printf (”%12s”, hName);
outFile.printf(”%12f”, year);
outFile.printf(”%17.4f”, damage);
outFile.printf(”%12f”, region);
outFile.printf(”%17.4f”, femaFunds);
outFile.printf(”%12f”, numYears);
outFile.printf (”%n”);*/

outFile.printf (”%12s”, hName);
//outFile.printf(”%12f”, year);
outFile.printf(”%17.4f”, damage);
outFile.printf(”%12s”, region);
outFile.printf(”%17.4f”, femaFunds);
outFile.printf(”%12f”, numYears);
outFile.printf (”%n”);

System.out.println(”");
System.out.println(”");
System.out.print(name + “, the formatting has been completed.”);

inFile.close(); // infile close
outFile.close(); // outfile close
}//public static close
}//class close
here:
//outFile.printf(”%12f”, year);
and here:
outFile.printf(”%12f”, numYears)
how do i make it not a float just take the f out im confused so sorry im just learning also it errors when i run it, it compiles fine

By: Tara D

————————————–…

import java.util.Scanner;

public class player{

private String name;
private double balance;
Scanner reader;

public player(){
name = “”;
balance = 0;
reader = new Scanner(System.in);
}

public player(String n){
name = n;
balance = 50;
reader = new Scanner(System.in);
}

public String getName(){
return name;
}

public double getBalance(){
return balance;
}

}

————————————–

import player.class
import java.util.Scanner;

public class casino{

public static void main(String[] args){

Scanner scanner = new Scanner(System.in);
System.out.println(”Good day. What’s your name.”);
new casino(scanner.nextLine());
System.out.println(getName() + “, What would like to do?”);
}

}

By: John