Introduction - If you have any usage issues, please Google them yourself
1) In drawing two-dimensional graphical interface in the coordinate system in which the x-axis is located in the middle of the plot area, y-axis in the drawing area to the left.
2) According to the following test data, in 1) Title of the coordinate system to draw data points, each data point with a small cross sign indicates, and
Crossed edges to (x, y) data points marked out the format of coordinate values , the final line connecting adjacent data points.
Number of data points x coordinate y coordinate
1020
250-30
310 016
3150126
5200164
3) 2) based on the theme of the design interface to receive user input of experimental data, plot the data points and the experimental curve.
4) write a program to track the user s mouse, and always put the mouse position is displayed.
5) write a Java GUI program to respond to mouse clicks and keyboard events, starting from the position of the mouse click the user key landscape
Into the character, if the mouse double-clic