12 |
Addition, |
Addition, |
13 |
Subtraction, |
Subtraction, |
14 |
Multiplication, |
Multiplication, |
15 |
Division |
Division, |
16 |
|
Sqr, |
17 |
|
Sqrt |
18 |
} |
} |
19 |
|
|
20 |
|
|
42 |
findViewById(R.id.btn9).setOnClickListener( new NumericClick('9') ); |
findViewById(R.id.btn9).setOnClickListener( new NumericClick('9') ); |
43 |
|
|
44 |
findViewById(R.id.btnback).setOnClickListener( new BackClick() ); |
findViewById(R.id.btnback).setOnClickListener( new BackClick() ); |
45 |
|
findViewById(R.id.btnclear).setOnClickListener( new ClearClick() ); |
46 |
findViewById(R.id.btnpoint).setOnClickListener( new PointClick() ); |
findViewById(R.id.btnpoint).setOnClickListener( new PointClick() ); |
47 |
|
|
48 |
findViewById(R.id.btnadd).setOnClickListener( new OperationClick(Ops.Addition) ); |
findViewById(R.id.btnadd).setOnClickListener( new OperationClick(Ops.Addition) ); |
50 |
findViewById(R.id.btnmul).setOnClickListener( new OperationClick(Ops.Multiplication) ); |
findViewById(R.id.btnmul).setOnClickListener( new OperationClick(Ops.Multiplication) ); |
51 |
findViewById(R.id.btndiv).setOnClickListener( new OperationClick(Ops.Division) ); |
findViewById(R.id.btndiv).setOnClickListener( new OperationClick(Ops.Division) ); |
52 |
|
|
53 |
|
findViewById(R.id.btnsqr).setOnClickListener( new SingleOperationClick(Ops.Sqr) ); |
54 |
|
findViewById(R.id.btnsqrt).setOnClickListener( new SingleOperationClick(Ops.Sqrt) ); |
55 |
|
|
56 |
findViewById(R.id.btnsum).setOnClickListener( new SumClick() ); |
findViewById(R.id.btnsum).setOnClickListener( new SumClick() ); |
57 |
|
|
58 |
mEdit = (EditText) findViewById(R.id.edit); |
mEdit = (EditText) findViewById(R.id.edit); |
61 |
|
|
62 |
} |
} |
63 |
|
|
64 |
|
void setResult(double res) { |
65 |
|
if ( Double.isInfinite(res) || Double.isNaN(res) ) { |
66 |
|
mClear = true; |
67 |
|
} |
68 |
|
|
69 |
|
|
70 |
|
mEdit.setText( Double.toString(res) ); |
71 |
|
mOperation = Ops.None; |
72 |
|
mVal1 = res; |
73 |
|
} |
74 |
|
|
75 |
|
|
76 |
class NumericClick implements View.OnClickListener { |
class NumericClick implements View.OnClickListener { |
77 |
char mNumval; |
char mNumval; |
111 |
} |
} |
112 |
} |
} |
113 |
|
|
114 |
|
class ClearClick implements View.OnClickListener { |
115 |
|
|
116 |
|
@Override |
117 |
|
public void onClick(View v) { |
118 |
|
mClear = false; |
119 |
|
mEdit.setText("0"); |
120 |
|
mOperation = Ops.None; |
121 |
|
mVal1 = 0; |
122 |
|
} |
123 |
|
} |
124 |
|
|
125 |
class PointClick implements View.OnClickListener { |
class PointClick implements View.OnClickListener { |
126 |
|
|
127 |
@Override |
@Override |
150 |
} |
} |
151 |
} |
} |
152 |
|
|
153 |
|
class SingleOperationClick implements View.OnClickListener { |
154 |
|
Ops mOp; |
155 |
|
public SingleOperationClick(Ops op) { |
156 |
|
mOp = op; |
157 |
|
} |
158 |
|
|
159 |
|
@Override |
160 |
|
public void onClick(View v) { |
161 |
|
mVal1 = Double.parseDouble( mEdit.getText().toString() ); |
162 |
|
|
163 |
|
double res = 0.0; |
164 |
|
switch (mOp) { |
165 |
|
case Sqr: |
166 |
|
res = mVal1 * mVal1; |
167 |
|
break; |
168 |
|
case Sqrt: |
169 |
|
res = Math.sqrt(mVal1); |
170 |
|
break; |
171 |
|
} |
172 |
|
setResult(res); |
173 |
|
} |
174 |
|
} |
175 |
|
|
176 |
class SumClick implements View.OnClickListener { |
class SumClick implements View.OnClickListener { |
177 |
@Override |
@Override |
178 |
public void onClick(View v) { |
public void onClick(View v) { |
198 |
break; |
break; |
199 |
} |
} |
200 |
|
|
201 |
if ( Double.isInfinite(res) || Double.isNaN(res) ) { |
setResult(res); |
|
mClear = true; |
|
|
} |
|
|
|
|
|
|
|
|
mEdit.setText( Double.toString(res) ); |
|
|
mOperation = Ops.None; |
|
|
mVal1 = res; |
|
202 |
} |
} |
203 |
} |
} |
204 |
} |
} |