面向对象基础-参考答案

1、，包含2 个成员变量x、y 分别表示x和y 坐标，2 个构造器和，包含2 个成员变量x、y 分别表示x和y 坐标，2 个构造器和publicclass public publicpublicvoidthis.x0=this.x0(this.y0=this.y0+publicclass publicpublicvoidthis.x0=this.x0(this.y0=this.y0+2（1）publicclasspublicpublicpublicdoublereturnpublicdoublereturnpublicpublicpublicdoublereturnpublicdoubleretu

2、rnpublicvoid3、定义一个笔记本类，该类有颜色（char）cpu型号publicclassComputeTestpublicicvoidmain(StringComputerc1=newComputerc2newComputer(红32); classComputerprivatecharpublicComputer()publicComputer(charcolor, this.color = color; this.cpuNum = cpuNum;publiccharclassComputerprivatecharpublicComputer()publicComputer(ch

3、arcolor, this.color = color; this.cpuNum = cpuNum;publicchargetColor()returnpublicvoidsetColor(char this.color = color;color)getCpuNum()returnpublicvoidcpuNum)this.cpuNumpublicputer()ln(笔记本的颜色: + getColor(); ln(笔记本的CPU型号getCpuNum();4StudentpublicclassStudentprivateStringprivateStringpublicStudent()p

4、ublicStudent(Stringname, = name; this.number=number; this.score = score;publicStringpublicStudent()publicStudent(Stringname, = name; this.number=number; this.score = score;publicStringgetName()returnpublicvoidsetName(Stringname)=publicStringgetNumber()returnpublicvoidsetNumber(Stringthis.number=getS

5、core()returnpublicvoidthis.score=score)publicvoidsortByScore(Studentmax=i=0j=Studentbstudentsi =i0 ;istudents.length;i+) System.out.prtudentsi.getName() + +publicclassStudentTestpublicicvoidi0 ;istudents.length;i+) System.out.prtudentsi.getName() + +publicclassStudentTestpublicicvoidmain(Stringargs)

6、Studentstudents=newStudents=newStudent(); 5（1）：o()”public classpublicvoid2）分别调用对象的 saypublic p=q=：o()”public class Constructor p=q=：o()”public class Constructor w=newString publicvoido, mynameis publicvoido, mynameis public3privateString publicvoido,mynameiss3(a,1); publicclassVehiclethis.brandthis.brand=this.color=color; speed = 0;publicStringgetColor()returnpublicvoidthis.color=publicdoublegetSpeed()r