实验三 Java类-实验报告纸

南京信息工程大学实验（实习）报告实验（实习）名称Java类实验（实习）日期4月17日得分指导教师方巍院计软专业计科年级2012班次3姓名王莹学号201213080811．实验目的：熟练Eclipse工具的使用与调试；掌握Java类、方法和变量的定义和使用；2．实验内容：（1）利用eclipse编写三个有关类的函数，运行并实现；3．实验步骤实验一程序源代码packagemyclass;publicclassDate{ privateintday,month,year; Date(inti,intj,intk) { day=i; month=j; year=k; } Date() { day=1; month=1; year=2014; } Date(Dated) { day=d.day; month=d.month; year=d.year; } publicvoidprintDate() { System.out.println(day+"/"+month+"/"+year); } publicDatetomorrow(){ Dated=newDate(this); d.day++; if(d.day>d.daysInMonth()){ d.day=1; d.month++; if(d.month>12){ d.month=1; d.year++; } } returnd; } publicintdaysInMonth(){ switch(month) { case1:case3:case5:case7:case8:case10:case12: return31; case4:case6:case9:case11: return30; default: if(year%100!=0&&year%4==0) { return29; } elsereturn28; } } publicstaticvoidmain(String[]args) { Dated1=newDate(); System.out.println("Thecurrentdateis(dd/mm/yy):"); d1.printDate(); System.out.println("Itstomorrowis(dd/mm/yy):"); d1.tomorrow().printDate(); Dated2=newDate(17,4,2014); System.out.println("Thecurrentdateis(dd/mm/yy):"); d2.printDate(); System.out.println("Itstomorrowis(dd/mm/yy):"); d2.tomorrow().printDate(); }}实验结果截图实验二程序源代码packagemyclass;publicclassHelloWorld{ publicstaticvoidmain(String[]args){inti=0;Stringgreetings[]={"HelloWorld!","No,Imenait!","HELLOWORLD!!"}; while(i<4){ try{ System.out.println(greetings[i]); }catch(ArrayIndexOutOfBoundsExceptione) { System.out.println("ResettingIndexValue"); i=-1; }catch(Exceptione){ System.out.println(e.toString()); }finally{ System.out.println("Thisisalwaysprinted"); } i++; } } }实验二结果截图实验三程序源代码packagemyclass;importjava.awt.*;importjava.awt.event.*;publicclassTwoListenInner{ privateFramef; privateTextFieldtf; publicstaticvoidmain(String[]args){TwoListenInnerthat=newTwoListenInner();that.go(); } publicvoidgo(){ f=newFrame("TwoListenersexample"); f.add("North",newLabel("clickanddragthemouse")); tf=newTextField(30); f.add("South",tf); f.addMouseMotionListener(newMouseMotionHandler()); f.addMouseListener(newMouseEventHandler()); f.setSize(300,200); f.setVisible(true); } //MouseMotionHandler publicclassMouseMotionHandlerextendsMouseMotionAdapter{ publicvoidmouseDragged(MouseEvente) { Strings="Mousedragging:X="+e.getX()+"Y="+e.getY(); tf.setText(s); } } //MouseEventHandler publicclassMouseEventHandlerextendsMouseAdapter { publicvoidMouseEntered(MouseEvente){ Strings="Themouseentered"; tf.setText(s); } publicvoidMouseExited(MouseEvente) { Strings="Themousehasleftthebuilding"; tf.setText(s); } }}实验三结果截图4．实验分析和总结1.已经较熟练的