java scientific calculator / Bugs

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# Sort A -> Z Sort Z -> A	Summary▾ Sort A -> Z Sort Z -> A	Milestone▾ Sort A -> Z Sort Z -> A Filter by Milestone	Status▾ Sort A -> Z Sort Z -> A Filter by Status	Owner▾ Sort A -> Z Sort Z -> A Filter by Owner	Created▾ Sort A -> Z Sort Z -> A	Updated▾ Sort A -> Z Sort Z -> A	Priority▾ Sort A -> Z Sort Z -> A
3	Calculator keyboard input is blocked	None	open		2011-11-11	2013-01-02	5
2	Calculator hangs when selecting differenet modes	None	open		2011-11-11	2013-01-02	5