📄 createbutton.java
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{
if(optr.equals("("))
layer(1);
else
{
forword = 1;
layer(-1);
if(carry==10)
expression.getString( display );
else
expression.getString( mToN( carry, 10, display ) );
}
expression.getString(optr);
if(carry==10)
display = ""+expression.getTopNumber();
else
display = mToN( 10, carry, ""+(int)(expression.getTopNumber()) );
if(optr.equals("(")) next = 2;
else next = 0;
}//end else if
else
{
if(forword==2)return;
if( !(optr.equals("=") && forword!=0 ) )
{
if(carry==10)
expression.getString( display );
else
expression.getString( mToN( carry, 10, display ) );
}
if(optr.equals("="))
expression.getString( "#" );
else
expression.getString( optr );
if(carry==10)
display = ""+expression.getTopNumber();
else
display = mToN( 10, carry, ""+(int)(expression.getTopNumber()) );
next = -1;
forword = 2;
}//end else
}//end method runSingalOptr of class allOptr
}//end inner class allOptr
/*************************************************************************/
/*********************数字输入监听器**************************************/
/*************************************************************************/
private class Input implements ActionListener
{
public void actionPerformed( ActionEvent E )
{
if(next ==0)return;
String x = E.getActionCommand();
if( x.equals("+/-") )
changeSign();
else if( inputLegal( x ) )
runInput( x );
displayField.setText(display);
forword = 0;
}//end method actionPerformed of class Input
public void runInput( String key )
{
if(forword==2)
{
display = "0";
forword = 0;
}
if( display.equals("0") && !key.equals(".") )
display = key;
else
display += key;
next = 1 ;
}//end method runInput of class Input
}//end inner class Input
/*************************************************************************/
/*********************以下为按钮功能(仅单目运算健和功能键)****************/
/*************************************************************************/
/*******************************+/-号变换*********************************/
private void changeSign()
{
if(!display.equals("0"))
{
if( Double.parseDouble( display )<0 )
display = display.substring( 1 );
else
display = "-"+display;
}
}// end method changeSign
/***********************************退格 BackSpace************************/
private void backSpace()
{
char remove = display.charAt( display.length()-1 );
if( display.length()>1 )
display = display.substring( 0, display.length()-1 );
else
display = "0";
if(remove=='.')point=0;
}// end method backSpace
/**********************************清空所有 C*****************************/
private void clearAll()
{
initVariable();
displayField.setText( "0." );
layerField.setText( "" );
}// end method clearAll
/***********************************清空当前 CE***************************/
private void clearCurrent()
{
display = "0";
displayField.setText( "0." );
layerField.setText( "" );
}// end method clearCurrent
/***********************************按格式显示****************************/
private void showResult( )
{
String toShow;
if( carry==10 && fe==1 )
{
double x = Double.parseDouble( display ),fag =0;
while( x/Math.pow(10,fag)>=10 )fag++;
while( x/Math.pow(10,fag)<=1 )fag--;
x = x/Math.pow(10,fag);
if(fag<0) toShow = ""+x+"e"+fag;
else toShow = ""+x+"e+"+fag;
}
else
toShow = display;
displayField.setText( toShow );
}// end method showResult
/*************************F-E状态*科学技术法格式状态**********************/
private void fe()
{
if(fe==1)fe=0;
else fe=1;
}// end method fe
/***************************括号层数标志**********************************/
private void layer( int n )
{
layer+=n;
if(layer!=0)layerField.setText( "(="+layer );
else layerField.setText( "" );
}// end method layer
/*****************************m进制到n进制的转换**************************/
private String mToN( int m, int n, String str )
{
int number;
if(m==n)return str;
String list = "0123456789ABCDEF";
if( m==10 )
number = (int)Double.parseDouble( str );
else
{
number = list.indexOf( str.charAt(0) );
for( int i=1; i<str.length(); i++ )
number = number*m + list.indexOf( str.charAt(i) );
}
if(n==2)return Integer.toBinaryString( number );
else if(n==8)return Integer.toOctalString( number );
else if(n==16)return Integer.toHexString( number ).toUpperCase();
else return ""+number;
}// end method mToN
/****************************sin，sin函数*********************************/
private void sin()
{
double data = Double.parseDouble( display );
if( checkBox.isSelected() )
{
if(radioButton[4].isSelected())
display = ""+Math.rint(Math.asin( data /180*Math.PI)*100000000)/100000000.0;
else
display = ""+Math.rint(Math.asin( data )*100000000)/100000000.0;
}
else
{
if(radioButton[4].isSelected())
display = ""+Math.rint(Math.sin( data/180*Math.PI)*100000000)/100000000.0;
else
display = ""+Math.rint(Math.sin( data )*100000000)/100000000.0;
}
}// end method sin
/*******************************acos，cos函数*****************************/
private void cos()
{
double data = Double.parseDouble( display );
if( checkBox.isSelected() )
{
if(radioButton[4].isSelected())
display = ""+Math.rint(Math.acos( data /180*Math.PI)*100000000)/100000000.0;
else
display = ""+Math.rint(Math.acos( data )*100000000)/100000000.0;
}
else
{
if(radioButton[4].isSelected())
display = ""+Math.rint(Math.cos( data/180*Math.PI)*100000000)/100000000.0;
else
display = ""+Math.rint(Math.cos( data )*100000000)/100000000.0;
}
}// end method cos
/******************************atan，tan函数******************************/
private void tan()
{
double data = Double.parseDouble( display );
if( checkBox.isSelected() )
{
if(radioButton[4].isSelected())
display = ""+Math.rint(Math.atan( data /180*Math.PI)*100000000)/100000000.0;
else
display = ""+Math.rint(Math.atan( data )*100000000)/100000000.0;
}
else
{
if(radioButton[4].isSelected())
display = ""+Math.rint(Math.tan( data/180*Math.PI)*100000000)/100000000.0;
else
display = ""+Math.rint(Math.tan( data )*100000000)/100000000.0;
}
}// end method tan
/******************************ln 及ln的反函数****************************/
private void ln()
{
double data = Double.parseDouble( display );
if( !checkBox.isSelected() )
display = ""+Math.log( data );
else
display = ""+Math.exp( data );
}// end method ln
/*******************************log及log的反函数**************************/
private void log()
{
double data = Double.parseDouble( display );
if( !checkBox.isSelected() )
display = ""+Math.log10( data );
else
display = ""+Math.pow( 10, data );
}// end method log
/********************************求n次方**********************************/
private void xpow( double x )
{
if( checkBox.isSelected() )x = -x;
display = ""+Math.pow( Double.parseDouble( display ), x );
}// end method xpow
/*********************************开方************************************/
private void sqrt( )
{
display = ""+Math.pow( Double.parseDouble( display ), 0.5 );
}// end method sqrt
/*******************************求百分数**********************************/
private void percent( )
{
display = ""+Math.pow( expression.getTopNumber(), 2 )/100;
forword = 0;
next =1;
}// end method percent
/*******************************阶乘**************************************/
public int nFactorial( int n )
{
if( n<0 ) return 0;
else if( n==0 )return 1;
else return n*nFactorial( n-1 );
}// end method nFactorial
/****************************将数转换为度分秒*****************************/
private void dms( )
{
double n = Double.parseDouble( display );
double neg;
if( n>0 )neg = 1;
else neg =0;
n = Math.abs( n );
double d = Math.floor( n );
double m = Math.floor( 60*( n-d ) );
double s = ( n-d )*60-m;
double dms = d+m/100+s*0.006;
if( Double.parseDouble( display ) <0 )dms = -dms;
displayField.setText( ""+dms );
}// end method dms
/*************************MR/MC/MS/M+按钮*********************************/
private void mr()//访存
{
display = mToN( 10, carry, memory );
}// end method mr
private void mc()//清存
{
memory = "0";
memField.setText("");
}// end method mc
private void ms()//储存
{
memory = display;
if(Double.parseDouble( memory )!=0)memField.setText("M");
}// end method ms
private void mp()//所存的数与当前的数相加
{
double x = Double.parseDouble( mToN( carry, 10, display ) )+Double.parseDouble( memory );
memory = ""+Double.toString( x );
}// end method mp
/***************************取整 Int**************************************/
private void intX()
{
display = ""+(int)Double.parseDouble( display );
}// end method intX
/***************************非运算 Not************************************/
private void notX()
{
long not;
long x[] = { 65535, 255 };
int i=0;
if( radioButton[6].isSelected() ) i=0;
else if ( radioButton[7].isSelected() ) i=1;
if(carry==10)
{
not = -(int)Double.parseDouble( display )-1;
display = ""+not;
}
else
{
not = x[i] - (int)Double.parseDouble( mToN( carry,10,display ) );
display = mToN( 10,carry,""+not ) ;
}
}// end method notX
/**************************返回当前显示的字符串***************************/
public String currentDisplay()
{
return displayField.getText();
}// end method currentDisplay
/*****************************检查输入合法性******************************/
private boolean inputLegal( String optr )
{
if( optr.equals(".") )
if( point==1 || carry!=10 )
return false;
else
point = 1;
else if( optr.equals("sqrt") );
else if( optr.equals("%") );
else if( optr.equals("F-E") );
else if( optr.equals("dms") );
else if( optr.equals("sin") );
else if( optr.equals("cos") );
else if( optr.equals("tan") );
else if( optr.equals("x^3") );
else if( optr.equals("x^2") );
else if( optr.equals("ln") );
else if( optr.equals("log") );
else if( optr.equals("n!") );
else if( optr.equals("1/x") );
else if( optr.equals("Int") );
else if( optr.equals("MC") );
else if( optr.equals("MR") );
else if( optr.equals("MS") );
else if( optr.equals("M+") );
else if( optr.equals("pi") );
else if( optr.equals("Not") );
else if( optr.equals("C") );
else if( optr.equals("CE") );
else if( optr.equals("BackSpace") );
else if( optr.equals(")") )
{
if( layer==0 || next==-1 )return false;
}
else if( optr.equals("(") )
if( next==1 )return false;
else
{
if(next ==2)return false;
}
return true;
}// end method inputLegal
}//end class CreateButton⌨️ 快捷键说明
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