【正文】
stract break byte boolean catch case class char continue default double do else extends false final float for finally if import implements int interface instanceof long length native new null package private protected public final return switch synchronized short static super try true this throw throws threadsafe transient void while 常量、變量 常量分為直接常量和符號常量。 int i,j,k。 整型數(shù)據(jù) 整型變量 數(shù)據(jù)類型 所占位數(shù) 數(shù)的范圍 byte 8 27~ 271 short 16 215~ 2151 int