Interacting with Filesystems - Beginning Java 7 - page 717

if (sb.length() > PNUMLEN)
sb.setLength(PNUMLEN);
else
if (sb.length() < PNUMLEN)
{
int len = PNUMLEN-sb.length();
for (int i = 0; i < len; i++)
sb.append(" ");
}
raf.writeChars(sb.toString());
sb = new StringBuffer(partdesc);
if (sb.length() > DESCLEN)
sb.setLength(DESCLEN);
else
if (sb.length() < DESCLEN)
{
int len = DESCLEN-sb.length();
for (int i = 0; i < len; i++)
sb.append(" ");
}
raf.writeChars(sb.toString());
raf.writeInt(qty);
raf.writeInt(ucost);
}
static class Part
{
private String partnum;
private String desc;
private int qty;
private int ucost;
Part(String partnum, String desc, int qty, int ucost)
{
this.partnum = partnum;
this.desc = desc;
this.qty = qty;
this.ucost = ucost;