packagetest; importjava.io.File; importjava.io.FileInputStream; importjava.io.FileNotFoundException; importjava.io.IOException; importjava.util.Date; importjava.util.Scanner; importorg.junit.Test; importobject.; publicclassTest1{ / 1-8章 / / 第一章: ·java用三个关键字在类的内部设定边界:pu...

importjava.util.ArrayList;importjava.util.Scanner;/Createdby莫文龙on2018/3/23./publicclassMain{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);intstart=scanner.nextInt();intend=scanner.nextInt();intcount=0;if(start<=0||end<start){thrownewRuntimeException("输入的数据有误");}Ar...