Hi Jason
There is a good start in your code:
int i = 0;
while ( i < names.length ) { ...
In the "while" loop, the first thing to do is, I presume, to check if
the entered searchName fits the current names[i]. You must do it before
incrementing i, as the first element in the array is names[0]. If there
is a match (and only in this case) you have to set "fundName" to "true"
and to exit.
To compare two String objects you can use the method "equals" or
"equalsIgnoreCase". (You cannot use the "==" operator.)
This gives something like:
int i = 0;
while ( i < names.length ){
if ( names[i].equals( searchName )){
findName = true;
break;
}
i++;
}
There are several nice variants for this code (for e.g. lopping based on
the value of "findName" and break on the value of i, and so on), I leave
you the pleasure to experiment them.
Hope it helps
mihai
jason waite a écrit :
I am having difficulty converting this project from a "for" loop to a
"while" loop. Everything that I input is "found". I am not sure
where the problem is. The homework specifies to use a while loop.
Does that mean that I could also use a do-while or is that not
allowed/necessary? Here is what I have. Thanks in advance!
import javax.swing.JOptionPane;
public class MyOwnWhileProject {
/** Creates a new instance of ForLoop */
public MyOwnWhileProject() {
}
/**
* @param args the command line arguments
*/
@SuppressWarnings("empty-statement")
public static void main(String[] args) {
// Declare and initialize String array variable called names.
String names
[]={"Beah","Bianca","Lance","Belle","Nico","Yza","Gem","Ethan"};
// This is the search string we are going to use to search the
array.
String searchName = JOptionPane.showInputDialog("Enter either
\"Yza\" or \"noname\"!");
// Declare and initialize boolean primitive type variable
calld foundName.
boolean foundName =false;
int i =0;
while (i<names.length){
i++;
foundName =true;
break;
}
// Display the result
if (foundName)
JOptionPane.showMessageDialog(null, searchName + " is
found!");
else
JOptionPane.showMessageDialog(null, searchName + " is not
found!");
}
}
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