aoqi@0: Neg03.java:26:12: compiler.err.does.not.override.abstract: Neg03.Y, m(), Neg03.D
aoqi@0: Neg03.java:32:12: compiler.err.does.not.override.abstract: Neg03.W, m(), Neg03.D
aoqi@0: Neg03.java:34:12: compiler.err.does.not.override.abstract: Neg03.Z, m(), Neg03.D
aoqi@0: 3 errors