java實(shí)驗(yàn)報(bào)告（四） - search readpudncom

1、JAVA上機(jī)實(shí)驗(yàn)報(bào)告之計(jì)算器程序設(shè)計(jì)JAVA實(shí)驗(yàn)報(bào)告（四）實(shí)驗(yàn)報(bào)告（四）計(jì)算器程序計(jì)算器程序一類圖一類圖本程序只有一個(gè)Calculat類二程序分析二程序分析imptjava.awt.imptjava.awt.event.imptjava.io.publicclassCalculat定義計(jì)算器類publicstaticvoidmain(Stringargs[])newMyFrame()創(chuàng)建新的窗體classMyFrameextendsFr

2、ameimplementsActionListenerintstate=0power=1定義變量JAVA上機(jī)實(shí)驗(yàn)報(bào)告之計(jì)算器程序設(shè)計(jì)btn4=newButton(“MC“)這些對(duì)按鈕的設(shè)計(jì)上面btn4.setFeground(Col.RED)已經(jīng)介紹就不再過(guò)多解釋了btn5=newButton(“MR“)btn5.setFeground(Col.RED)btn6=newButton(“MS“)btn6.setFeground(Col.R

3、ED)btn7=newButton(“M“)這些對(duì)按鈕的設(shè)計(jì)上面已經(jīng)介紹就不再過(guò)多解釋了btn7.setFeground(Col.RED)panel3.add(btn4)panel3.add(btn5)panel3.add(btn6)panel3.add(btn7)add(panel3)panel4=newPanel(newGridLayout(4533))btn8=newButton(“7“)btn8.setFeground(Col.

4、BLUE)btn9=newButton(“8“)btn9.setFeground(Col.BLUE)btn10=newButton(“9“)btn10.setFeground(Col.BLUE)btn11=newButton(““)btn11.setFeground(Col.RED)btn12=newButton(“sqrt“)btn12.setFeground(Col.BLUE)btn13=newButton(“4“)btn13.se

5、tFeground(Col.BLUE)btn14=newButton(“5“)btn14.setFeground(Col.BLUE)btn15=newButton(“6“)btn15.setFeground(Col.BLUE)btn16=newButton(““)btn16.setFeground(Col.RED)btn17=newButton(“%“)btn17.setFeground(Col.BLUE)btn18=newButton