String str = "0023";
NumberFormat nf = new DecimalFormat("0000");
int value = Integer.valueOf(str).intValue() +1;
System.out.println(nf.format(value));
NumberFormat nf = new DecimalFormat("0000");
int value = Integer.valueOf(str).intValue() +1;
System.out.println(nf.format(value));
是这个吗?class Test
{
public String change(String num)
{
int newnum = Integer.parseInt(num);
newnum++;
return "000"+newnum;
}
public static void main(String args[])
{
System.out.println (change("00023"));
}
}