1. About solar-system simulation

1.1.

Escape velocity is the minimum speed that a body must have in order to escape the gravitational attraction of a particular planet or other object.

1.2.

Planets used in the simulating program:

1. sun
2. earth
3. moon
4. mercury
5. venus
6. mars
7. jupiter
8. satum
9. uranus
10. neptune

Sun: Color.Red
Earth: Color.Blue
Mercury: Color.Green
Venus : RGB(35, 199, 200)
Mars: RGB(42, 234, 012)
Jupiter: RGB(55, 23, 123)
Satum: RGB(244, 100, 012)
Uranus:RGB(12, 255, 98)
Neptune:RGB(66, 88, 99)
Language: Java

1.3.

2. About 2-D Ping Pong Game

2.1

Simple Ping pong 2-D game Language: Java

3. Recursive Tree

3.1

Recursive In-Order traversal of a Binary Tree Language: Java

4.Required Jar

For your convenience, stdlib.jar has been uploaded, download and import it

1. Download the standard libraries called, "stdlib.jar"
2. Go on "https://introcs.cs.princeton.edu/java/stdlib" then download "stdlib.jar"
3. Open eclipse -> project-> properties->java build path-> libraries-> add external JARs
4. Import the jar file
5. Run the project