About constants, 131/280.
About control statements, 146/280.
About true and false, 150/280.
About triangle project, 153/280.
About exceptions, 158, 280.
About triangle project 2, 159/280.
About iterations, 168/280.
About blocks, 177/280.
About sandwich code, 182/280.
About scoring project, 190/280.
About classes, 206/280.
About open classes, 209/280.
About dice project, 214/280.