import java.io.*;
import java.lang.*;
//Testing tank
public class testUnderflow {
  public static void main(String[] argn) {
    try {
      Tank t = new Tank();
      System.out.println("tank content = "+t.content());
      t.remove(1.0);
      System.out.println("Underflow Exception not handled");
    }
	catch (IllegalArgumentException e) {
		System.err.println("Can't add/remove negative amounts");
	}
	catch (Tank.TankUnderFlowException e) {
		System.err.println("Tank underflow by "+e.underflow);
	}
  }
}