public class Assert1{
  public static void main(String[] argumendid){
    System.out.println("1");
    assert true;
    System.out.println("2");
    assert false;
    System.out.println("3");
  }
}	

/*
C:\Documents and Settings\stud\jaagup>javac -source 1.4 Assert1.java

C:\Documents and Settings\stud\jaagup>java Assert1
1
2
3

C:\Documents and Settings\stud\jaagup>java -enableassertions Assert1
1
2
Exception in thread "main" java.lang.AssertionError
        at Assert1.main(Assert1.java:6)
*/