Java help

chocolate boy123

Hi how can I loop through and array and use a println to print all the numbers on one line, but no println inside the for loop and not using Array.tostring? Thank you

Seth Brundle

Use an escape sequence of \n within your loop?
http://docs.oracle.com/javase/tutorial/java/data/characters.html

chocolate boy123

But will \n not put on a new line? This is an example to give you an idea ...

Int array [] = new int [5];

For (int I=0;I<array.length;I++;){

array

chocolate boy123

But will \n not put on a new line? This is an example to give you an idea ...

Int array [] = new int [5];

For (int I=0;I<array.length;I++;){

array = integer.parseint(JOptionPane...);
}

System.out.println("the array values are" + array );


But obviously it will not print because it's not in the for loop so I need a way to be able to print the array values are 1 2 3 4 5

Seth Brundle

Oops, misread it and thought you wanted them on separate lines but not using println.
So you're looping through the array and in each iteration, you want to make append the current array value onto the string?

Have you looked at System.out.print?

chocolate boy123

I know what you mean but im not actually using print i was using that as a quick example im actually using a message box i should of been more clear. I will copy and paste my application and you can see what i mean...

public class practise {

public static void main(String[] args) {
String text;

double sum=0;
double TempArray [] = new double [6];

text = "Average mothly temperatures in Limerick City for six month period Apr - Sept \n\n";

for (int i=0;i<TempArray.length;i++){
TempArray = Double.parseDouble(JOptionPane.showInputDialog("Enter temperatures"));
sum += TempArray;

}

text += "Celsius: " + Arrays.toString(TempArray) + "" + "\n\n";

tempConvert(TempArray);

double average = getCalc(TempArray);

text += "Degrees: " + Arrays.toString(TempArray) + "" + "\n\n";

text+= "Average temperature in celsius is: " + average +"\n\n";

text+= "Average temperature in degrees is: " + average + "\n\n";

JOptionPane.showMessageDialog(null, text, "Results", JOptionPane.
INFORMATION_MESSAGE);

}

public static void tempConvert(double temp []){
for (int i=0; i<temp.length;i++){

double far = 9 /5 * temp + 32;
}
}
public static double getCalc(double[] tempArray){
double total=0;

for (int i =0; i<tempArray.length; i++){
total += tempArray;
}
total = total / 6;
return total;

}
}



As you can see i am using the Arrays.toString method but i dont want to use that is there anything i can replace that with because that will output .. Celsius : [ 1,2,3,4,5,6] but i dont want the square brackets shown.

Seth Brundle

Would this not work?

1. define string variable (with no value)
2. run loop
3. for each iteration, append the value to your string
4. finish loop
5. print string

chocolate boy123

How do I do number3 that you called out?

Seth Brundle

I take it Google is down again?

Sarcasm aside, search for "Java append string". You won't learn if someone does everything for you!

chocolate boy123

Very true, thank you for your help!