Defect Description: When you directly press Insert, 0 gets inserted into the tree instead of showing error.
Steps to reproduce the issue: Go to experiment of Search Trees under list of experiments and go to simulation section.Press Insert directly without entering any number.
Expected Result: It should have given an alert that Insert a number first.
Defect Description: When you directly press Insert, 0 gets inserted into the tree instead of showing error.
Steps to reproduce the issue: Go to experiment of Search Trees under list of experiments and go to simulation section.Press Insert directly without entering any number.
Expected Result: It should have given an alert that Insert a number first.
Actual Result: It inserts 0 at position 0.