I need to copy the string into a character array the largest number of times you can within the array. In this case OPERATIVO would enter 3 times in the char array and the rest of the array could be whatever character. That I can do?
public void copyToArray( char [] arrayCharacters ){
String var = new String("OPERATIVO");
for(int i=0 ; i < 30 ; i++){
...
}
}
Not quite sure what you want, but I'll give it a shot:
Edit: try this one:
public static void copearCaracteres(char[] arrayOriginal )
{
String cadena = new String("OPERATIVO");
int div = arrayOriginal.length / cadena.length();
int j = div * cadena.length();
for(int i=0 ; i < arrayOriginal.length; i++)
{
if(i == j) return;
arrayOriginal[i] = cadena.charAt(i % cadena.length());
}
}
arrayOriginal.length / cadena.length()
will give you the max number of times you can copy the String in the array.
In your case, 30/8 => 3
% as Martin does in its answer and modify the end condition of your for loop : for(int i=0 ; i < arrayOriginal.length / cadena.length() * cadena.length(); i++) String cadena = new String("OPERATIVO");
char[] cad = new char[30];
int length = cadena.length();
int count = 1;
for(int i=0,j=0; i < 30 && j <= length ; i++ ){
if(j==length)
{
j = 0;
count++;
}
if(count > 3)
{
break;
}
cad[i] = cadena.charAt(j);
j++;
}
Output : OPERATIVOOPERATIVOOPERATIVO
I don't know if i understand the question correctly, but if you want to copy the String to a character array then this is how you can do it:
public void copy(char[] arr) {
String string = "Some String";
if (arr.length < string.length())
// error
arr = string.toCharArray();
}
You can use java.lang.System.arraycopy():
String srcString = "OPERATIVO";
char[] srcArray = srcString.toCharArray();
int maxLength = 30;
char[] destArray = new char[maxLength];
int pos = 0;
while(pos < maxLength) {
java.lang.System.arraycopy(srcArray,
0,
destArray,
pos,
Math.min(srcArray.length, maxLength - pos));
pos += srcArray.length;
}
String string = new String(destArray);
System.out.println(string);
