java - Best way to pass values from JTextField into a method? -
currently working on bmr/tdee calculator. calculator consists of taking users age, gender, weight , height, , uses information calculate bmr , tdee value. i've created gui this, , final step actual calculations. (some minor changes left i.e. changing height panel thats irrelevant question).
what best way pass instance variables static methods? jtextfield's instance variables within class, , have 2 methods calculate bmr , tdee respectively (static methods).
code posted below.
the variables need use pretty textfield ones, , these need passed calcbmr() , calctdee(). initial idea make of these variables static , use gettext() , plug these values formula i'm using, goes along lines of:
10 x weight (kg) + 6.25 x height (cm) - 5 x age (y) + 5.
does way sound feasible or there better way given code? advice on how efficiently appreciated.
public class bmrcalcv2 extends jframe { // frames , main panels static jframe mainframe; static jpanel mainpanel; static jpanel combinedgahwpanel; // combines genderpanel, agepanel, heightpanel, weightpanel - // borderlayout, whereas // gender/agepanel flowlayouts. static jpanel weightheightpanel; // combines weight , height panel out flowlayout panel, combined above borderlayout panel // image components static jpanel imgpanel; private jlabel imglabel; private jlabel activitylevelhelp; // menu-bar components static jmenubar menubar; static jmenu savemenu, optionmenu, helpmenu; // age components static jpanel agepanel; private jlabel agelabel; private jlabel yearslabel; private jtextfield agetextfield; // gender components static jpanel genderpanel; private jlabel genderlabel; private jradiobutton gendermale; private jradiobutton genderfemale; // height components static jpanel heightpanel; private jlabel heightlabel; private jtextfield heightcmfield; private jlabel heightftlabel; private jlabel heightinchlabel; private jtextfield heightftfield; private jtextfield heightinchfield; private jtogglebutton cmbutton; private jtogglebutton feetbutton; // weight components static jpanel weightpanel; private jlabel weightlabel; private jtextfield weightfield; private jtogglebutton kgbutton; private jtogglebutton lbbutton; // tdee , bmr components static jpanel tdeepanel; static jpanel tdeebmrpanel; static jpanel activitylevelpanel; static jpanel bmrtdeevaluespanel; static jpanel bmrvaluepanel; static jpanel tdeevaluepanel; private jlabel tdeequestionlabel; private jlabel activitylevellabel; private jcombobox activitylevelbox; private jradiobutton tdeeyes; private jradiobutton tdeeno; private jlabel bmrlabel; private jlabel tdeelabel; private jbutton calculate; // default values gender/weight/height , other variables string[] activitylevels = {"sedentary", "lightly active", "moderately active", "very active", "extra active"}; string genderselection = "m"; string weightselection = "kg"; string heightselection = "cm"; string tdeeselection = "no"; string agevalue; string weightvalue; string heightvalue; static string bmrvalue = "n/a"; static string tdeevalue = "n/a"; public bmrcalcv2(string title) { // main jframe settitle("bmr/tdee calculator"); mainpanel = new jpanel(); // jpanel declarations menubar = new jmenubar(); imgpanel = new jpanel(); agepanel = new jpanel(); genderpanel = new jpanel(); heightpanel = new jpanel(); weightpanel = new jpanel(); weightheightpanel = new jpanel(new borderlayout()); combinedgahwpanel = new jpanel(new borderlayout()); // create new panel used combine // genderpanel, agepanel, weightpanel, heightpanel below tdeebmrpanel = new jpanel(new borderlayout()); tdeepanel = new jpanel(); activitylevelpanel = new jpanel(); bmrtdeevaluespanel = new jpanel(new borderlayout()); bmrvaluepanel = new jpanel(); tdeevaluepanel = new jpanel(); // image panel declaration imglabel = new jlabel(new imageicon("filesrc//mainlogo.png")); activitylevelhelp = new jlabel(new imageicon("filesrc//question-mark.png")); imgpanel.add(imglabel); // jpanel layout managers agepanel.setlayout(new flowlayout(flowlayout.center, 5, 5)); genderpanel.setlayout(new flowlayout(flowlayout.center, 5, 5)); // menu jcomponents savemenu = new jmenu("save"); optionmenu = new jmenu("options"); helpmenu = new jmenu("help"); menubar.add(savemenu); menubar.add(optionmenu); menubar.add(helpmenu); // age jcomponents agelabel = new jlabel("age:"); yearslabel = new jlabel("<html><i>years</i><html>"); agetextfield = new jtextfield(5); agepanel.add(agelabel); agepanel.add(agetextfield); agepanel.add(yearslabel); // gender jcomponents genderlabel = new jlabel("gender:"); gendermale = new jradiobutton("male", true); genderfemale = new jradiobutton("female"); genderpanel.add(genderlabel); genderpanel.add(gendermale); genderpanel.add(genderfemale); buttongroup gendergroup = new buttongroup(); // groups male , female radio buttons 1 can selected gendergroup.add(gendermale); gendergroup.add(genderfemale); gendermale.addactionlistener(new actionlistener(){ public void actionperformed(actionevent e) { string genderselection = "m"; } }); genderfemale.addactionlistener(new actionlistener(){ public void actionperformed(actionevent e) { string genderselection = "f"; } }); // height jcomponents heightlabel = new jlabel("height:"); heightcmfield = new jtextfield(4); heightftfield = new jtextfield(3); heightftlabel = new jlabel("ft"); heightinchlabel = new jlabel("inch"); heightinchfield = new jtextfield(3); cmbutton = new jtogglebutton("cm", true); feetbutton = new jtogglebutton("feet"); heightpanel.add(heightlabel); buttongroup heightgroup = new buttongroup(); heightgroup.add(cmbutton); heightgroup.add(feetbutton); heightpanel.add(heightcmfield); heightpanel.add(heightftfield); heightpanel.add(heightftlabel); heightpanel.add(heightinchfield); heightpanel.add(heightinchlabel); heightpanel.add(cmbutton); heightpanel.add(feetbutton); heightftfield.setvisible(false); heightftlabel.setvisible(false); heightinchfield.setvisible(false); heightinchlabel.setvisible(false); cmbutton.addactionlistener(new actionlistener(){ public void actionperformed(actionevent e) { heightselection = "cm"; heightinchfield.setvisible(false); heightftfield.setvisible(false); heightftlabel.setvisible(false); heightinchlabel.setvisible(false); heightcmfield.setvisible(true); weightpanel.revalidate(); weightpanel.repaint(); } }); feetbutton.addactionlistener(new actionlistener(){ public void actionperformed(actionevent e) { heightselection = "feet"; heightinchfield.setvisible(true); heightftfield.setvisible(true); heightftlabel.setvisible(true); heightinchlabel.setvisible(true); heightcmfield.setvisible(false); weightpanel.revalidate(); weightpanel.repaint(); } }); // weight jcomponents weightlabel = new jlabel("weight:"); weightfield = new jtextfield(4); kgbutton = new jtogglebutton("kg", true); lbbutton = new jtogglebutton("lbs"); weightpanel.add(weightlabel); weightpanel.add(weightfield); weightpanel.add(kgbutton); weightpanel.add(lbbutton); buttongroup weightgroup = new buttongroup(); weightgroup.add(kgbutton); weightgroup.add(lbbutton); kgbutton.addactionlistener(new actionlistener(){ public void actionperformed(actionevent e) { weightselection = "kg"; } }); lbbutton.addactionlistener(new actionlistener(){ public void actionperformed(actionevent e) { weightselection = "lb"; } }); // tdee jcomponents tdeequestionlabel = new jlabel("calculate tdee also?"); tdeeyes = new jradiobutton("yes"); tdeeno = new jradiobutton("no", true); buttongroup tdeebutton = new buttongroup(); tdeebutton.add(tdeeyes); tdeebutton.add(tdeeno); tdeepanel.add(tdeequestionlabel); tdeepanel.add(tdeeyes); tdeepanel.add(tdeeno); // activitylevel jcomponents activitylevellabel = new jlabel("activity level: "); activitylevelbox = new jcombobox(activitylevels); activitylevelbox.setselectedindex(0); activitylevelpanel.add(activitylevellabel); activitylevelpanel.add(activitylevelbox); activitylevelpanel.add(activitylevelhelp); activitylevelbox.setenabled(false); activitylevelhelp .settooltiptext("<html><b>sedentary:</b> little or no exercise, deskjob<<br /><b>lightly active:</b> little exercise/sports 1-3 days/week<br /><b>moderately active:</b> moderate exercise/sports 3-5 days/week<br /><b>very active:</b> hard exercise or sports 6-7 days/week<br /><b>extra active:</b> hard daily exercise or sports & physical labor job </html>"); tdeeyes.addactionlistener(new actionlistener(){ public void actionperformed(actionevent e) { tdeeselection = "yes"; activitylevelbox.setenabled(true); } }); tdeeno.addactionlistener(new actionlistener(){ public void actionperformed(actionevent e) { tdeeselection = "no"; activitylevelbox.setenabled(false); } }); // tdee , bmr value components bmrvalue = calcbmr(); bmrlabel = new jlabel("<html><br /><br /><font size=4>you have <i><font color=red>bmr</font></i> of: " + bmrvalue + "<font></html>"); tdeelabel = new jlabel("<html><br /><font size=4>you have <i><font color=red>tdee</font></i> of: " + tdeevalue + "<font></html>"); calculate = new jbutton("calculate"); bmrtdeevaluespanel.add(calculate, borderlayout.north); bmrtdeevaluespanel.add(bmrlabel, borderlayout.center); bmrtdeevaluespanel.add(tdeelabel, borderlayout.south); // debugging panels buttons (remove when complete) calculate.addactionlistener(new actionlistener(){ public void actionperformed(actionevent e) { system.out.println("male:" + gendermale.isselected()); system.out.println("female:" + genderfemale.isselected() + "\n"); system.out.println("kg:" + kgbutton.isselected()); system.out.println("lb:" + lbbutton.isselected() + "\n"); system.out.println("cm:" + cmbutton.isselected()); system.out.println("feet:" + feetbutton.isselected() + "\n"); system.out.println("tdee yes:" + tdeeyes.isselected()); system.out.println("tdee no:" + tdeeno.isselected()); system.out.println("-------------------------------------"); } }); // adding sub jpanels main jpanel mainpanel.add(imgpanel); combinedgahwpanel.add(agepanel, borderlayout.north); // combine genderpanel , agepanel (which both flowlayouts) // single borderlayout panel agepanel given northern spot , // genderpanel given center spot in panel weightheightpanel.add(weightpanel, borderlayout.north); // nested borderlayouts, weightheightpanel borderlayout nested // southern position of combinedgahw border layout. weightheightpanel.add(heightpanel, borderlayout.center); weightheightpanel.add(tdeebmrpanel, borderlayout.south); combinedgahwpanel.add(genderpanel, borderlayout.center); combinedgahwpanel.add(weightheightpanel, borderlayout.south); mainpanel.add(combinedgahwpanel); // adding tdeebmrpanel tdeebmrpanel.add(tdeepanel, borderlayout.north); tdeebmrpanel.add(activitylevelpanel, borderlayout.center); tdeebmrpanel.add(bmrtdeevaluespanel, borderlayout.south); // adding main jpanel , menubar jframe setjmenubar(menubar); add(mainpanel); } public static string calcbmr() { return bmrvalue; } public static string calctdee() { return tdeevalue; } public static void main(string[] args) { bmrcalcv2 gui = new bmrcalcv2("bmr/tdee calculator"); gui.setdefaultcloseoperation(jframe.exit_on_close); gui.setvisible(true); gui.setsize(330, 500); gui.setresizable(false); } } thanks.
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