e1005.java

java小程序

public class E1005
{
static String myDelete(String str,int from,int num)
{
StringBuffer sb=new StringBuffer();
sb.append(str);
sb.delete(from,from+num);
return sb.toString();
}
public static void main(String args[])
{
System.out.println(myDelete("我喜欢Java",2,4));
}
}