Instalación Descompiladores y Ejemplos

1. PONTIFICIA UNIVERSIDAD CATOLICA DEL ECUADOR SEDE
IBARRA
NOMBRE: Luis Alexander Campues
CARRERA: Ing. En Sistemas
NIVEL: 5 nivel
TEMA: Instalación VB Decompiler y Java Decompiler

5. Programas Para Decompilar
Calculadora en Visual Basic 6

6. VERSION 5.00
Begin VB.Form Form1 Caption = "Calculadora by marco" ScaleMode = 1AutoRedraw = False
FontTransparent = TrueBorderStyle = 4 'Fixed ToolWindow'Icon = n/aLinkTopic =
"Form1"MaxButton = 0 'FalseMinButton = 0 'FalseClientLeft = 45ClientTop = 285ClientWidth
= 3975ClientHeight = 3195ShowInTaskbar = 0 'FalseStartUpPosition = 3 'Windows DefaultBegin
CommandButton salirCaption = "Salir"Left = 2160Top = 2520Width = 1695Height = 495TabIndex
= 11EndBegin CommandButton newCaption = "Nuevo calculo"Left = 120Top = 2520Width =
1695Height = 495TabIndex = 10EndBegin CommandButton dividirCaption = "/"Left = 3240Top =
1800Width = 615Height = 495TabIndex = 9BeginProperty FontName = "MS Sans Serif"Size =
13,5Charset = 0Weight = 400Underline = 0 'FalseItalic = 0 'FalseStrikethrough = 0
'FalseEndPropertyEndBegin CommandButton porCaption = "x"Left = 2160Top = 1800Width =
615Height = 495TabIndex = 8BeginProperty FontName = "MS Sans Serif"Size = 13,5Charset =
0Weight = 400Underline = 0 'FalseItalic = 0 'FalseStrikethrough = 0 'FalseEndPropertyEndBegin
CommandButton restarCaption = "-"Left = 1200Top = 1800Width = 615Height = 495TabIndex =
7BeginProperty FontName = "MS Sans Serif"Size = 13,5Charset = 0Weight = 700Underline = 0
'FalseItalic = 0 'FalseStrikethrough = 0 'FalseEndPropertyEndBegin CommandButton
sumarCaption = "+"Left = 120Top = 1800Width = 615Height = 495TabIndex = 6BeginProperty
FontName = "MS Sans SerifSize = 13,5Charset = 0Weight = 700Underline = 0 'FalseItalic = 0
'FalseStrikethrough = 0 'FalseEndPropertyEndBegin TextBox resLeft = 1680Top = 1080Width =
1215Height = 405TabIndex = 5BeginProperty FontName = "MS Sans Serif"Size = 9,75Charset =
0Weight = 700Underline = 0 'FalseItalic = 0 'FalseStrikethrough = 0
'FalseEndPropertyEndBeginTextBox can2Left = 1680Top = 600Width = 1215Height =
405TabIndex = 4BeginProperty FontName = "MS Sans Serif"Size = 9,75Charset = 0Weight =
400Underline = 0 'FalseItalic = 0 'FalseStrikethrough = 0 'FalseEndPropertyEndBegin TextBox
can1Left = 1680Top = 120Width = 1215Height = 405TabIndex = 3BeginProperty FontName = "MS
Sans Serif"Size = 9,75Charset = 0Weight = 400Underline = 0 'FalseItalic = 0 'FalseStrikethrough =
0 'FalseEndPropertyEndBegin Label Label3Caption = "Resultado"Left = 240Top = 1200Width =
1095Height = 255TabIndex = 2BeginProperty FontName = "MS Sans Serif"Size = 9,75Charset =
0Weight = 700Underline = 0 'FalseItalic = 0 'FalseStrikethrough = 0 'FalseEndPropertyEndBegin
Label Label2Caption = "Cantidad2"Left = 240Top = 720Width = 1095Height = 615TabIndex =

7. 1BeginProperty FontName = "MS Sans Serif"Size = 9,75Charset = 0Weight = 700Underline = 0
'FalseItalic = 0 'FalseStrikethrough = 0 'FalseEndPropertyEndBegin Label Label1Caption =
"Cantidad1"Left = 240Top = 240Width = 1215Height = 495TabIndex = 0BeginProperty FontName
= "MS Sans Serif"Size = 9,75Charset = 0Weight = 700Underline = 0 'FalseItalic = 0
'FalseStrikethrough = 0 'FalseEndPropertyEndEndAttribute VB_Name = "Form1"
Segundo programa Tarifador
VERSION 5.00
Begin VB.Form MainfrmCaption = "Xbox Tarificador"BackColor = &H0&ScaleMode =
1AutoRedraw = FalseFontTransparent = True Picture = "Mainfrm.frx":0Icon =
"Mainfrm.frx":2DF4LinkTopic = "Form1" MaxButton = 0 'False ClientLeft = 60 ClientTop =
345 ClientWidth = 4005 ClientHeight = 4650 StartUpPosition = 3 'Windows Default Begin
CommandButton Command4 Caption = "Parar" BackColor = &H8000& Left = 2160 Top =
3840 Width = 975 Height = 255 Enabled = 0 'False TabIndex = 26 MaskColor =
&HFF00& Style = 1 End Begin CommandButton Command3 Caption = "Parar" BackColor
= &H8000& Left = 2160 Top = 1440 Width = 975 Height = 255 Enabled = 0 'False
TabIndex = 25 MaskColor = &H80FF80& Style = 1 End Begin CommandButton Command2
Caption = "Pausa" BackColor = &H8000& Left = 2160 Top = 3600 Width = 975 Height =
255 Enabled = 0 'False TabIndex = 24 MaskColor = &HFF00& Style = 1 End Begin
CommandButton Command1 Caption = "Pausa" BackColor = &H8000& Left = 2160 Top =
1200 Width = 975 Height = 255 Enabled = 0 'False TabIndex = 23 MaskColor =
&H80FF80& Style = 1 End Begin TextBox Text2 BackColor = &H0& ForeColor = &HFF00&
Left = 360 Top = 2340 Width = 1455 Height = 375 Text = "XBOX 2" TabIndex = 22
BorderStyle = 0 'None Alignment = 2 'Center BeginProperty Font Name = "MS Sans Serif"
Size = 13,5 Charset = 0 Weight = 400 Underline = 0 'False Italic = 0 'False
Strikethrough = 0 'False EndProperty Appearance = 0 'Flat End Begin TextBox Text1
BackColor = &H0& ForeColor = &HFF00& Left = 360 Top = 56 Width = 1455 Height
=375 Text = "XBOX 1" TabIndex = 21 BorderStyle = 0 'None Alignment = 2 'Center
BeginProperty Font Name = "MS Sans Serif" Size = 13,5 Charset = 0 Weight = 400
Underline = 0 'False Italic = 0 'False Strikethrough = 0 'False EndProperty Appearance =
0 'Flat End Begin Timer Timer2 Enabled = 0 'False Interval = 900 Left = 2160 Top =

8. 2520 End Begin Timer Timer1 Enabled = 0 'False Interval = 900 Left = 2160 Top = 120
End Begin PictureBox Picture2 BackColor = &H80000005& Index = 2 Picture =
"Mainfrm.frx":36BE ForeColor = &H80000008& Left = 120 Top = 2760 Width = 1990
Height = 1815 Visible = 0 'False TabIndex = 5 ScaleMode = 0 ScaleLeft = 0 ScaleTop = 0
ScaleWidth = 2026.047 ScaleHeight = 1815 AutoRedraw = False FontTransparent = True
Appearance = 0 'Flat End Begin PictureBox Picture2 BackColor = &H80000005& Index = 1
Picture = "Mainfrm.frx":424D ForeColor = &H80000008& Left = 120 Top = 2760 Width =
1990 Height = 1815 Visible = 0 'False TabIndex = 4 ScaleMode = 0 ScaleLeft = 0
ScaleTop = 0 ScaleWidth = 2026.047 ScaleHeight = 1815 AutoRedraw = False
FontTransparent = True Appearance = 0 'Flat End Begin PictureBox Picture1 BackColor =
&H80000005& Index = 2 Picture = "Mainfrm.frx":4EE4 ForeColor = &H80000008& Left =
120 Top = 480 Width = 1990 Height = 1815 Visible = 0 'False TabIndex = 3
ScaleMode = 0 ScaleLeft = 0 ScaleTop = 0 ScaleWidth = 2026.047 ScaleHeight = 1815
AutoRedraw = False FontTransparent = True Appearance = 0 'Flat End Begin PictureBox
Picture1 BackColor = &H80000005& Index = Picture = "Mainfrm.frx":5A73 ForeColor =
&H80000008& Left = 120 Top = 480 Width = 1990 Height = 1815 Visible = 0 'False
TabIndex = 2 ScaleMode = 0 ScaleLeft = 0 ScaleTop = 0 ScaleWidth = 2026.047
ScaleHeight = 1815 AutoRedraw = False FontTransparent = True Appearance = 0 'Flat End
Begin PictureBox Picture2 BackColor = &H80000005& Index = 0 Picture =
"Mainfrm.frx":670A ForeColor = &H80000008& Left = 120 Top = 2760 Width = 1990
Height = 1815 TabIndex = 1 ScaleMode = ScaleTop = 0 ScaleWidth = 2026.047
ScaleHeight = 1815 AutoRedraw = False FontTransparent = True Appearance = 0 'Flat End
Begin PictureBox Picture1 BackColor = &H80000005& Index = 0 Picture =
"Mainfrm.frx":7092 ForeColor = &H80000008& Left = 120 Top = 480 Width = 1990
Height = 1815 TabIndex = 0 ScaleMode = 0 ScaleLeft = 0 ScaleTop = 0 ScaleWidth =
2026.047 ScaleHeight = 1815 AutoRedraw = False FontTransparent = True Appearance =
0 'Flat End Begin MediaPlayer MP2 Left = 3600 Top = 4440 Width = 375 Height = 255
Visible = 0 'False TabIndex = 28 End Begin MediaPlayer MP1 Left = 3240 Top = 4440
Width = 375 Height = 255 Visible = 0 'False TabIndex = 27 End Begin Label Label12
Caption = "$" BackColor = &H0& ForeColor = &HFF0000& Left = 2400 Top = 4080
Width = 135 Height = 375 TabIndex = 20 BackStyle = 0 'Transparent BeginProperty Font
Name = "MS Sans Serif" Size = 13,5 Charset = 0 Weight = 400 Underline = 0 'False
Italic = 0 'False Strikethrough = 0 'False EndProperty End Begin Label cost2 Caption = "0"
BackColor = &H0& ForeColor = &HFF0000& Left = 2640 Top = 4080 Width = 1335
Height = 375 TabIndex = 19 BackStyle = 0 'Transparent BeginProperty Font Name = "MS
Sans Serif" Size = 13,5 Charset = 0 Weight = 400 Underline = 0 'False Italic = 0
'False Strikethrough = 0 'False EndProperty End Begin Label Label10 Caption = ":"
BackColor = &H0& ForeColor = &HFF00& Left = 2520 Top = 3000 Width = 135 Height =
615 TabIndex = 18 BackStyle = 0 'Transparent BeginProperty Font Name = "MS Sans
Serif" Size = 24 Charset = 0 Weight = 400 Italic = 0 'False Strikethrough = 0 'False
EndProperty End Begin Label Label9 Caption = ":" BackColor = &H0& ForeColor =
&HFF00& Left = 3240 Top = 3000 Width = 135 Height = 615 TabIndex = 17 BackStyle
= 0 'Transparent BeginProperty Font Name = "MS Sans Serif" Size = 24 Charset = 0
Weight = 400 Underline = 0 'False Italic = 0 'False Strikethrough = 0 'False EndProperty
End Begin Label hor2 Caption = "0" BackColor = &H0& ForeColor = &HFF00& Left =
2160 Top = 3000 Width = 375 Height = 615 TabIndex = 16 BackStyle = 0 'Transparent
BeginProperty Font Name = "MS Sans Serif" Size = 24 Charset = 0 Weight = 400
Underline = 0 'False Italic = 0 'False Strikethrough = 0 'False EndProperty End Begin
Label min2 Caption = "0" BackColor = &H0& ForeColor = &HFF00& Left = 2640 Top =
3000 Width = 615 Height = 61 TabIndex = 15 BackStyle = 0 'Transparent BeginProperty

9. Font Name = "MS Sans Serif" Size = 24 Charset = 0 Weight = 400 Underline = 0
'False Italic = 0 'False Strikethrough = 0 'False EndProperty End Begin Label sec2
Caption = "0" BackColor = &H0& ForeColor = &HFF00& Left = 3360 Top = 3000 Width =
615 Height = 615 TabIndex = 14 BackStyle = 0 'Transparent BeginProperty Font Name
= "MS Sans Serif" Size = 24 Charset = 0 Weight = 400 Underline = 0 'False Italic =
0 'False Strikethrough = 0 'False EndProperty End Begin Label Label5 Caption = "$"
BackColor = &H0& ForeColor = &HFF0000& Left = 2400 Top = 1680 Width = 135 Height
= 375 TabIndex = 13 BackStyle = 0 'Transparent BeginProperty Font Name = "MS Sans
Serif" Size = 13,5 Charset = 0 Weight = 400 Underline = 0 'False Italic = 0 'False
Strikethrough = 0 'False EndProperty End Begin Label sec1 Caption = "0" BackColor =
&H0& ForeColor = &HFF00& Left = 3360 Top = 600 Width = 615 Height = 615
TabIndex = 12 BackStyle = 0 'Transparent BeginProperty Font Name = "MS Sans Serif"
Size = 24 Charset = 0 Weight = 400 Underline = 0 'False Italic = 0 'False
Strikethrough = 0 'False EndProperty End Begin Label Label4 Caption = ":" BackColor =
&H0& ForeColor = &HFF00& Left = 3240 Top = 600 Width = 135 Height = 615
TabIndex = 11 BackStyle = 0 'Transparent BeginProperty Font Name = "MS Sans Serif"
Size = 24 Charset = 0 Weight = 400 Underline = 0 'False Italic = 0 'False
Strikethrough = 0 'False EndProperty End Begin Label min1 Caption = "0" BackColor =
&H0& ForeColor = &HFF00& Left = 2640 Top = 600 Width = 615 Height = 615
TabIndex = 10 BackStyle = 0 'Transparent BeginProperty Fon Name = "MS Sans Serif"
Size = 24 Charset = 0 Weight = 400 Underline = 0 'False Italic = 0 'False
Strikethrough = 0 'False EndProperty End Begin Label Label3 Caption = ":" BackColor =
&H0& ForeColor = &HFF00& Left = 2520 Top = 600 Width = 135 Height = 615
TabIndex = 9 BackStyle = 0 'Transparent BeginProperty Font Name = "MS Sans Serif"
Size = 24 Charset = 0 Weight = 400 Underline = 0 'False Italic = 0 'False
Strikethrough = 0 'False EndProperty End Begin Label rep Caption = "0" BackColor =
&H0& ForeColor = &HFF0000& Left = 2760 Top = 120 Width = 1215 Height = 255
TabIndex = 8 End Begin Label cost1 Caption = "0" BackColor = &H0& ForeColor =
&HFF0000& Left = 264 Top = 1680 Width = 1335 Height = 375 TabIndex = BackStyle
= 0 'Transparent BeginProperty Font Name = "MS Sans Serif" Size = 13, Charset = 0
Weight = 400 Underline = 0 'False Italic = 0 'False Strikethrough = 0 'False EndProperty
End Begin Label hor1 Caption = "0" BackColor = &H0& ForeColor = &HFF00& Left =
2160 Top = 600 Width = 375 Height = 615 TabIndex = 6 BackStyle = 0 'Transparent
BeginProperty Font Name = "MS Sans Serif" Size = 2 Charset = 0 Weight = 400
Underline = 0 'False Italic = 0 'False Strikethrough = 0 'Fals EndProperty EndEnd
Attribute VB_Name = "Mainfrm"
Intalacion Dj Java Decompiler

12. Ejemplo de Programas Para Descompilar
Programa 1
package org.nfunk.jep;
import java.util.Observable;
public class Variable extends Observable
{
protected Variable(String s)
{
isConstant = false;

13. validValue = false;
name = s;
value = null;
validValue = false;
}
protected Variable(String s, Object obj)
{
isConstant = false;
validValue = false;
name = s;
value = obj;
validValue = obj != null;
}
public String getName()
{
return name;
}
public boolean isConstant()
{
return isConstant;
}
public void setIsConstant(boolean flag)
{
isConstant = flag;
}
public Object getValue()
{
return value;
}
public boolean hasValidValue()
{
return validValue;
}
public void setValidValue(boolean flag)
{
if(isConstant())
{
return;
} else
{
validValue = flag;
return;
}
}

14. public boolean setValue(Object obj)
{
if(!setValueRaw(obj))
{
return false;
} else
{
setChanged();
notifyObservers(obj);
return true;
}
}
protected boolean setValueRaw(Object obj)
{
if(isConstant)
{
return false;
} else
{
validValue = true;
value = obj;
return true;
}
}
public String toString()
{
if(!validValue || value == null)
return name + ": null";
if(isConstant)
return name + ": " + value.toString() + " (Constant)";
else
return name + ": " + value.toString();
}
protected String name;
private Object value;
private boolean isConstant;
private boolean validValue;
}

15. Programa 2
public class VectorEvaluator extends EvaluatorVisitor
{
public VectorEvaluator()
{
}
public Object visit(ASTFunNode astfunnode, Object obj)
throws ParseException
{
if(astfunnode == null)
return null;
PostfixMathCommandI postfixmathcommandi = astfunnode.getPFMC();
if(postfixmathcommandi == null)
throw new ParseException("No function class associated with " +
astfunnode.getName());
int i = astfunnode.jjtGetNumChildren();
if(postfixmathcommandi instanceof SpecialEvaluationI)
return
((SpecialEvaluationI)astfunnode.getPFMC()).evaluate(astfunnode, obj, this,
stack, symTab);
if(postfixmathcommandi instanceof CallbackEvaluationI)
{
Object obj1 =
((CallbackEvaluationI)postfixmathcommandi).evaluate(astfunnode, this);
stack.push(obj1);

16. return obj1;
}
obj = astfunnode.childrenAccept(this, obj);
if(postfixmathcommandi.getNumberOfParameters() == -1)
postfixmathcommandi.setCurNumberOfParameters(i);
if((postfixmathcommandi instanceof UnaryOperatorI) ||
(postfixmathcommandi instanceof BinaryOperatorI) || (postfixmathcommandi
instanceof NaryOperatorI) || (postfixmathcommandi instanceof Comparative))
postfixmathcommandi.run(stack);
else
if(i == 0)
postfixmathcommandi.run(stack);
else
if(stack.peek() instanceof MatrixValueI)
{
MatrixValueI amatrixvaluei[] = new
MatrixValueI[astfunnode.jjtGetNumChildren()];
amatrixvaluei[i - 1] = (MatrixValueI)stack.pop();
Dimensions dimensions = amatrixvaluei[i - 1].getDim();
for(int j = i - 2; j >= 0; j--)
{
Object obj2 = stack.pop();
if(!(obj2 instanceof MatrixValueI))
throw new ParseException("All arguments of function must be
same dimension");
amatrixvaluei[j] = (MatrixValueI)obj2;
if(!dimensions.equals(amatrixvaluei[j].getDim()))
throw new ParseException("All arguments of function must be
same dimension");
}
MatrixValueI matrixvaluei = Tensor.getInstance(dimensions);
for(int k = 0; k < dimensions.numEles(); k++)
{
for(int l = 0; l < i; l++)
stack.push(amatrixvaluei[l].getEle(k));
postfixmathcommandi.run(stack);
matrixvaluei.setEle(k, stack.pop());
}
stack.push(matrixvaluei);
} else
{
postfixmathcommandi.run(stack);
}
return obj;
}
}