renamed:    exercise2/Vector3D.java -> exercise2/Vector3D(2).java
	new file:   exercise2/Vector3D(3).java
	modified:   exercise2/Vector3D.java
	new file:   exercise2/Vector3DTest.txt
	renamed:    exercise2/Vector3DTester.java -> exercise2/Vector3DTester(2).java
	modified:   exercise2/Vector3DTester.java
	new file:   exercise3/Particle1D.class
	new file:   exercise3/Particle1D.java
	new file:   exercise3/Particle1DEuler.class
	new file:   exercise3/Particle1DEuler.java
	new file:   exercise3/Particle1DLeapFrog.class
	new file:   exercise3/Particle1DLeapFrog.java
	new file:   exercise3/Particle3D.java
	new file:   exercise3/Vector3D.java
	new file:   exercise3/Vector3DTest.txt
	new file:   exercise3/Vector3DTester.java
	new file:   exercise3/euler
	new file:   exercise3/leapfrog