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//loan.java import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.beans.*;
public class loan extends jpanel implements actionlistener { jlabel ltype,lamount,lmonth,linstlmnt; jtextfield tamount,tmonth,tinstlmnt; jlist ttype; jbutton submit; string loantype; string[] interestrates={"5","5","4"}; public string[] getinterestrates() { return interestrates; } public void setinterestrates(string[] interestrates) { this.interestrates=interestrates; } public loan() { ltype=new jlabel("贷款类型:"); lamount=new jlabel("贷款金额:"); lmonth=new jlabel("贷款月数:"); linstlmnt=new jlabel("每月应付金额:"); tamount=new jtextfield(10); tmonth=new jtextfield(10); tinstlmnt=new jtextfield(10); string[] type={"housing","personal","car"}; ttype=new jlist(type); submit=new jbutton("è?¶¨"); setlayout(new gridlayout(5,2)); add(ltype); add(ttype); add(lamount); add(tamount); add(lmonth);add(tmonth); add(linstlmnt);add(tinstlmnt); add(submit); linstlmnt.setvisible(false); tinstlmnt.setvisible(false); submit.addactionlistener(this); } public void actionperformed(actionevent evt) { float intlmnt=0; int carloan=0; int personalloan=0; int houseloan=0; int amount; int noofmonth; jbutton source=(jbutton)evt.getsource(); amount=integer.parseint(tamount.gettext()); noofmonth=integer.parseint(tmonth.gettext()); //loantype = (string)ttype.getselectedvalue(); //tinstlmnt.settext("sample"); int amtpermonth=amount/noofmonth; if(!(interestrates[0]).equals("")) { carloan=integer.parseint(interestrates[0]); } if(!(interestrates[1]).equals("")) { personalloan=integer.parseint(interestrates[1]); } if(!(interestrates[2]).equals("")) { houseloan=integer.parseint(interestrates[2]); } loantype=(string)ttype.getselectedvalue(); if(loantype.equals("personal")) { intlmnt=(personalloan*amount)/(100*noofmonth); } if(loantype.equals("housing")) { intlmnt=(houseloan*amount)/(100*noofmonth); } if(loantype.equals("car")) { intlmnt=(carloan*amount)/(100*noofmonth); } tinstlmnt.settext(string.valueof(intlmnt+amtpermonth)); linstlmnt.setvisible(true); tinstlmnt.setvisible(true); tinstlmnt.setenabled(false); } }
//loaneditor.java import java.beans.*; import java.awt.*; import java.awt.event.*; import javax.swing.*;
public class loaneditor extends jpanel implements propertyeditor,actionlistener { jlabel lcar,lpersonal,lhouse; jtextfield tcar,tpersonal,thouse; string[] interestrates={"","",""}; jpanel panel; public object getvalue() { interestrates[0]=tcar.gettext(); interestrates[1]=tpersonal.gettext(); interestrates[2]=thouse.gettext(); return interestrates; } public void setvalue(object ctemp) { interestrates= (string[]) ctemp; tcar.settext(interestrates[0]); tpersonal.settext(interestrates[1]); thouse.settext(interestrates[2]); } public component getcustomeditor(){return this;} public loaneditor() { lcar=new jlabel("æû³µ´û¿î"); lpersonal=new jlabel("¸öèë´û¿î"); lhouse=new jlabel("?¿îý´û¿î"); tcar=new jtextfield(10); tpersonal=new jtextfield(10); thouse=new jtextfield(10); setlayout(new borderlayout()); panel=new jpanel(); panel.setlayout(new gridlayout(3,2)); panel.add(lcar); panel.add(tcar); panel.add(lpersonal); panel.add(tpersonal); panel.add(lhouse); panel.add(thouse); add(new jpanel(),borderlayout.west); add(new jpanel(),borderlayout.east); add(panel,borderlayout.center); tcar.addactionlistener(this); tpersonal.addactionlistener(this); thouse.addactionlistener(this); } public void actionperformed(actionevent evt) { interestrates[0]=tcar.gettext(); interestrates[1]=tpersonal.gettext(); interestrates[2]=thouse.gettext(); } public boolean ispaintable(){ return true;} public void paintvalue(graphics g,rectangle r){} public string getjavainitializationstring(){ return null;} public string getastext(){return null;} public void setastext(string s) throws illegalargumentexception{} public string[] gettags(){ return null;} public boolean supportscustomeditor(){ return true;} }
//loanbeaninfo.java import java.beans.*; import java.awt.*;
public class loanbeaninfo extends simplebeaninfo { public propertydescriptor[] getpropertydescriptors() { try { propertydescriptor interestrates=new propertydescriptor("interestrates",loan.class); interestrates.setpropertyeditorclass(loaneditor.class); propertydescriptor arr[]=new propertydescriptor[1]; arr[0]=interestrates; return arr; } catch(exception e) { system.out.println(e); return null; } } }
//loan.mft name: loan.class java-bean: true
name: loaneditor.class java-bean: false
name: loanbeaninfo.class java-bean: false
打包程序 jar cvfm loan.jar loan.mft *.class
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