The complete program is given below.
Use the length of the array in testing
for the end.
It would be a mistake to write in a literal value like 5
because you want the method to work for all int arrays.
Of course you could call your loop control variable
something other than j.
// Array Example
//
class ChangeArray
{
public void print ( int[] x )
{
for ( int j=0; j < x.length; j++ )
System.out.print( x[j] + " " );
System.out.println( );
}
public void zeroElt ( int[] x, int elt )
{
if ( elt < x.length )
x[ elt ] = 0;
}
// Make all the elements zero.
public void zeroAll ( int[] ar )
{
for ( int j=0; j < ar.length; j++ )
ar[j] = 0;
}
}
public class ChangeTest
{
public static void main ( String[] args )
{
ChangeArray cng = new ChangeArray();
int[] value = {27, 19, 34, 5, 12} ;
System.out.println( "Before:" );
cng.print( value );
cng.zeroAll( value );
System.out.println( "After:" );
cng.print( value );
}
}
Will the j in zeroAll() and the j
in print() interfere with each other?