/*
 * assert booleanExpression;
 * assert booleanExpression : message;
 *
 * javac -source 1.4 AssertSample.java
 * java  -enableassertions AssertSample
 */
import java.lang.*;

/**
 * Sample for assert.
 */
class AssertSample {

  /**
   * Do it.
   */
  public void doIt(String args[]) {
    assert args.length == 0 : args.length + " != 0";
    System.out.println(args.length);
  }

  public static void main(String args[]) {
    AssertSample sample = new AssertSample();
    sample.doIt(args);
  }
}