myfilter.txt

3D手机游戏开发实例源代码 3D迷宫游戏的演示程序

import java.io.*;
import javax.microedition.rms.*;
public class MyFilter implements RecordFilter {
  int criterion;
  MyFilter(int criterion) {
    this.criterion = criterion;
  }
  public boolean matches(byte[] candidate) {
    try {
      DataInputStream din = new DataInputStream(new ByteArrayInputStream(candidate));
      din.reset();
      if (din.readInt() >=criterion) return true;
    }catch (Exception e) {}
    return false;
  }
}