实例讲解—类设计分析（学生类）

  class Student{

      private String stuno ;

      private String name ;51Testing软件测试网ou nMr;pw8bq&A

      private float math ;51Testing软件测试网2Q9P
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      private float english ;

      private float computer ;51Testing软件测试网(H\-W4f6K+R

     //构造方法

      public Student(){} ;

      public Student(String s,String n,float m,float e,float c){ 51Testing软件测试网}A/WB`}

          this.setStuno(s) ;51Testing软件测试网Jg [A/v{*AN0B

          this.setName(n) ;51Testing软件测试网1WAV C8AHLi~

          this.setMath(m) ;51Testing软件测试网F]+Tv|1b [!q

          this.setEnglish(e) ;51Testing软件测试网&Hn#T4fDej

          this.setComputer(c) ;   

      }51Testing软件测试网oC @IV?/C,F

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//封装

      public void setStuno(String s){

          stuno = s ;

      }51Testing软件测试网p$FD/Vh

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      public void setName(String n){

          name = n ; 

      }

     51Testing软件测试网wcI mX#Q

      public void setMath(float m){51Testing软件测试网"PF6~%a \/{;j

          math = m ;51Testing软件测试网;Zb*V)D+Fm
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      }

     51Testing软件测试网 D4V_@-f;L&WSGg/`W

      public void setEnglish(float e){

          english = e ;51Testing软件测试网kx\ls'[T

      }51Testing软件测试网#x
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      public void setComputer(float c){

          computer = c ;

      }51Testing软件测试网|9] ^_bJ

     51Testing软件测试网8bP4E d3g.l{

      public String getStuno(){51Testing软件测试网(kEG%fX vx7xF

          return stuno ;51Testing软件测试网~
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      }

      public String getName(){51Testing软件测试网
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          return name ;

      }

     51Testing软件测试网)OTJ)aXoo#et

      public float getMath(){51Testing软件测试网2xfUS7_~$Q+n

          return math ;

      }51Testing软件测试网I(W3^&e#E-?u

      public float getEnglish(){

          return english ; 51Testing软件测试网2f/wJ%TGu

      }51Testing软件测试网j!m+R/P{Xt:W7wV B

     51Testing软件测试网J s9o"\&C5S.]njRU2M

      public float getComputer(){

          return computer ;

      }51Testing软件测试网Y5|9I5P+n _

      public float sum(){51Testing软件测试网tpe~%rEv'hN.E/}.q

          return math + english +computer ; //求和操作51Testing软件测试网okaP_%f

      }51Testing软件测试网 su [9k*I(h@A|R)y

     51Testing软件测试网 l&_ }t+z,~6p-fc

      public float avg(){                   //求平均值51Testing软件测试网G4n'YLJ

          return this.sum() / 3 ;51Testing软件测试网X7Ma/_ Hq

         51Testing软件测试网@~~M zUj

      }

      public float max(){                   //求最大值51Testing软件测试网L%~]v-q4}uv

          float max = math ;51Testing软件测试网 j
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          max = max >computer?max:computer ;51Testing软件测试网*d
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          max = max >english?max:english ; 

          return max ;  51Testing软件测试网*OP$O_l
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      }

       public float min(){                   //求最小值

          float min = math ;

          min = min <computer?min:computer ;51Testing软件测试网0P,h.ukQ

          min = min <english?min:english ; 51Testing软件测试网r Os3qb:F*s(Wa

          return min ;  51Testing软件测试网)L+n4D;T}E

      }51Testing软件测试网 d:O7Np|*q ~

  } ;

 51Testing软件测试网F4](g"G/XZR

  public class ExampleDemo01{

      public static void main(String args[]){51Testing软件测试网{'Xk J1OT.h q}

          Student stu = null ;                       //声明对象51Testing软件测试网%L&wh Il4DX)c

          stu = new Student("MLDN-33","李兴华",95.0f,89.0f,96.0f) ;51Testing软件测试网)H:V]eU'bi4E0X'~f

          System.out.println("学生编号：" + stu.getStuno()) ;

          System.out.println("学生姓名：" + stu.getName()) ;51Testing软件测试网f
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          System.out.println("数学成绩：" + stu.getMath()) ;51Testing软件测试网&@#Eq
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          System.out.println("英语成绩：" + stu.getEnglish()) ;51Testing软件测试网0VYf q)hq

          System.out.println("最高分：" + stu.max()) ;51Testing软件测试网Ur)RM4e7e ic

          System.out.println("最低分：" + stu.min()) ;51Testing软件测试网!kJHut*b$yEQ

      }51Testing软件测试网CJ0?YVx_

  }51Testing软件测试网m_IqxMX%W,z

学生编号：MLDN-3351Testing软件测试网3hT;k;A7}n1PD6h

学生姓名：李兴华

数学成绩：95.0

英语成绩：89.0

最高分：96.0

最低分：89.051Testing软件测试网zjc+~l:D~2E@