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quiz1.java:

_________________

public class Quiz1

{

//==== True False Variables ========//

int s1=6;

int[] checkRes=new int[s1];

String[] Qtf=new String[s1]; // Questions

String sp="........................................................................";

//============================================//

//=========== Initial Function ===============//

//============================================//

public Quiz1() {

//=====================

sp=sp+sp;

//========== Add true false Questions ========//

Qtf[0]="1- The system bus carries bits between the microprocessor and memory and input/output devices"+sp; checkRes[0]=1;

Qtf[1]="2- Accumulator is an 8-bit register which is part of the ALU"+sp; checkRes[1]=1;

Qtf[2]="3- The following Mnemonics MOV A,B has 1 byte"+sp; checkRes[2]=1;

Qtf[3]="4- The following Mnemonics STA 5050H has 2 bytes"+sp; checkRes[3]=0;

Qtf[4]="5- The following Mnemonics IN 02H has 3 byte"+sp; checkRes[4]=0;

Qtf[5]="6- The following Mnemonics HLT has 1 byte"+sp; checkRes[5]=1;

}

}

________________

quiz2.java:

_______________

public class Quiz2

{

//==== Choice Variables ========//

int s2=3;

int[] chRes=new int[s2];

String[] Qch=new String[s2]; // Questions

String spch="........................................................................";

//==================================//

//=========== Initial Function ===============//

//============================================//

Quiz2() {

spch=spch+spch;

//========== Add Choice Questions ========//

Qch[0]="1- A microprocessor flag is simply a ..........."+spch; chRes[0]=3;

Qch[1]="2- What is the Hex code of MOV A,C ..........."+spch; chRes[1]=2;

Qch[2]="3- What is the Hex code of HLT .................."+spch; chRes[2]=3;

}

}

_____________

exams.java:

________

import java.awt.*;

import java.applet.*;

public class Exams extends Applet {

// to give variables to the classes

Quiz1 Q1=new Quiz1();

Quiz2 Q2=new Quiz2();

//==== True False Variables ========//

int[] checkRes=new int[Q1.s1];

CheckboxGroup[] ck=new CheckboxGroup[Q1.s1];

String[] Qtf=new String[Q1.s1]; // Questions

Label[] lb=new Label[Q1.s1];

//==== Choice Variables ========//

Choice cx1,cx2,cx3,cx4,cx5,cx6;

Choice[] ch=new Choice[Q2.s2];

Label[] lbch=new Label[Q2.s2];

Label[] lbchAns=new Label[Q2.s2];

//========== variables ==============//

String Res1=" ",Res2=" ",Res3=" ",Res=" ";

int R1=0,R2=0,R3=0;

Button Bt,Bt1,Bt2,Bt3;

Label Lq1,Lq2,Lq3;

Label lbRes11,lbRes22,lbRes33,lbRes;

Label lbRes1,lbRes2,lbRes3;

//A Label object is a component for placing text in a container.

//A label displays a single line of read-only text.

//The text can be changed by the application, but a user cannot edit it directly

Label LBA=new Label();

Label LBA1=new Label();

Label LBA2=new Label();

Label ALI=new Label();

Label SPA1=new Label();

Label SPA2=new Label();

String sa=" ";

//============ Quistion colors ===========

Color col1=new Color(0,0,255); // blue

Color col2=new Color(0,0,255);

Color col3=new Color(0,0,255);

Color col4=new Color(0,0,255);

//================== Quistion Head Color =============//

Color col5=new Color(178,34,34);

Color col6=new Color(238,221,130);

//================== Gray backcolor ans ch and text =============//

Color cl=new Color(190,190,190);

//=========== Initial Function ===============//

public void init() {

//============== Choice 1 ==========//

cx1=new Choice();

cx1.addItem(" -------- Select Answer --------");

cx1.addItem("a. Register");

cx1.addItem("b. Decorder");

cx1.addItem("c. Flip-flop");

cx1.addItem("d.None");

cx1.setBounds(280,240,100,20);

add(cx1);

cx1.setVisible(false);

//============== Choice 2 ==========//

cx2=new Choice();

cx2.addItem(" -------- Select Answer --------");

cx2.addItem("a.80");

cx2.addItem("b.79");

cx2.addItem("c.2F");

cx2.addItem("d.None");

cx2.setBounds(280,240,100,20);

add(cx2);

cx2.setVisible(false);

//============== Choice 3 ==========//

cx3=new Choice();

cx3.addItem(" -------- Select Answer --------");

cx3.addItem("a.47");

cx3.addItem("b.D3");

cx3.addItem("c.76");

cx3.addItem("d.None");

cx3.setBounds(280,240,100,20);

add(cx3);

cx3.setVisible(false);

//=====================

add(LBA);

LBA.setText(" "+sa+sa );

LBA1.setText(" "+sa+sa+sa );

LBA2.setText(" "+sa+sa+sa );

SPA1.setText(" "+sa+sa );

Color col11=new Color(255,248,220);

SPA1.setBackground(col11);

SPA2.setText(" "+sa+sa );

Color col111=new Color(255,248,220);

SPA2.setBackground(col111);

ALI.setText(" ~~ EXAM ~~"+sa+sa );

ALI.setFont(new Font("TimesRoman", Font.BOLD, 12));

Color col22=new Color(173,255,47);

ALI.setBackground(col22);

Color col222=new Color(34,139,34);

ALI.setForeground(col222);

//========== Add true false Questions ========//

Lq1=new Label();

add(Lq1);

Lq1.setText("QUESTION No. (1): Select (T) for correct statment and (F) for incorrect" +Q1.sp);

Lq1.setFont(new Font("Dialog", Font.PLAIN, 20));

Lq1.setForeground(col5);

Lq1.setBackground(col6);

//===== add CheckboxGroups =======//

int cs=0;

setLayout(new FlowLayout(0,0,0));

for(int i=0;i<Q1.s1;i++)

{

lb=new Label();

lb.setBackground(Color.white);

add(lb);

lb.setText(Q1.Qtf);

lb.setFont(new Font("Dialog", Font.PLAIN, 14));

lb.setBounds(100,10*(i+1),700,20);

if(cs==0)

{

cs=1;

lb.setForeground(col1);

}

else if(cs==1)

{

cs=2;

lb.setForeground(col2);

}

else if(cs==2)

{

cs=3;

lb.setForeground(col3);

}

else if(cs==3)

{

cs=0;

lb.setForeground(col4);

}

ck=new CheckboxGroup();

add(new Checkbox("T",ck,false));

add(new Checkbox("F",ck,false));

}

add(LBA);

setLayout(new FlowLayout(0,0,0));

lbRes33=new Label();

add(lbRes33);

lbRes33.setText(" ");

Bt1 = new Button(" Submit ");

add(Bt1);

lbRes1=new Label();

add(lbRes1);

lbRes1.setBackground(Color.orange);

lbRes1.setText(" ");

//========== Add Choice Questions ========//

add(SPA1);

add(SPA2);

Lq2=new Label();

add(Lq2);

Lq2.setText("QUESTION No. (2): Choose the best answer "+Q2.spch);

Lq2.setFont(new Font("Dialog", Font.PLAIN, 20));

Lq2.setForeground(col5);

Lq2.setBackground(col6);

//===== add Choice tools =======//

cs=0;

setLayout(new FlowLayout(0,0,0));

for(int i=0;i<Q2.s2;i++)

{

lbch=new Label();

add(lbch);

lbch.setBackground(Color.white);

lbch.setText(Q2.Qch);

lbch.setFont(new Font("Dialog", Font.PLAIN, 14));

lbch.setBounds(100,10*(i+1),700,20);

if(cs==0)

{

cs=1;

lbch.setForeground(col1);

}

else if(cs==1)

{

cs=2;

lbch.setForeground(col2);

}

else if(cs==2)

{

cs=3;

lbch.setForeground(col3);

}

else if(cs==3)

{

cs=0;

lbch.setForeground(col4);

}

ch=new Choice();

if(i<1)

copyChoice(ch,cx1);

else if(i<2)

copyChoice(ch,cx2);

else

copyChoice(ch,cx3);

add(ch);

setLayout(new FlowLayout(0,0,0));

lbchAns=new Label();

add(lbchAns);

lbchAns.setBackground(cl);

lbchAns.setForeground(Color.red);

lbchAns.setText(" "+sa+sa+sa);

lbchAns.setFont(new Font("Dialog", Font.PLAIN, 14));

}

//=======================

add(LBA);

setLayout(new FlowLayout(0,0,0));

lbRes33=new Label();

add(lbRes33);

lbRes33.setText(" ");

Bt2 = new Button(" Submit ");

add(Bt2);

lbRes2=new Label();

add(lbRes2);

lbRes2.setBackground(Color.orange);

lbRes2.setText(" ");

//=======================

//=======================

setLayout(new FlowLayout(0,0,0));

// add(LBA2);

lbRes22=new Label();

add(lbRes22);

lbRes22.setText(sa+sa+sa+sa+sa+sa+sa+sa+sa+sa);

Bt = new Button(" Total Result");

add(Bt);

Bt.setBounds(180,100,100,30);

lbRes=new Label();

add(lbRes);

Color cc6=new Color(188,143,143);

lbRes.setBackground(cc6);

lbRes.setText(" ");

lbRes.setFont(new Font("Dialog", Font.PLAIN, 18));

lbRes11=new Label();

add(lbRes11);

lbRes11.setText(sa+sa+sa+sa+sa+sa+sa);

lbRes33=new Label();

add(lbRes33);

lbRes33.setText(sa);

add(ALI);

}

//============ Copy Choice Function ==========//

public void copyChoice(Choice cxk,Choice cx)

{

int i=0;

cxk.removeAll();

while(i< cx.getItemCount())

{

cxk.addItem(cx.getItem(i));

i++;

}

}

//============ Action Function ===============//

public boolean action (Event evt, Object arg)

{

if(evt.target instanceof Button)

{

Res1=" ";Res2=" ";Res3=" ";Res=" ";

if (evt.target == Bt1)

{

lbRes1.setText("You must answer all of the questions");

if(CheckTF()==1)

{

SeeAns1();

lbRes1.setText(Res1);

}

}

if (evt.target == Bt2)

{

if(CheckCh()==1)

{

SeeAns2();

lbRes2.setText(Res2);

}else

lbRes2.setText("You must answer all of the questions");

}

if (evt.target == Bt)

{

int xr=R1+R2+R3 , tt=Q1.s1+Q2.s2;

lbRes.setText(" You scored: "+xr+" (out of a possible "+ tt+" )");

}

repaint();

}

return true;

}

//=========== Main Paint Function ============//

public void paint(Graphics g){

g.drawString("", 10, 30);

}

//=========== SeeAns1 Function ============//

public void SeeAns1()

{

int i, Rs1=0;

for(i=0;i<Q1.s1;i++)

{

Checkbox cx= (Checkbox) ck.getSelectedCheckbox();

String x1;

x1=cx.getLabel();

if(x1=="T" && Q1.checkRes==1)

{

Rs1++;

cx.setBackground(Color.green);

}

else if(x1=="F" && Q1.checkRes==0)

{

Rs1++;

cx.setBackground(Color.green);

}

else

cx.setBackground(Color.red);

}

Res1=Res1 + " You got: ( "+Rs1 + " ) out of ( "+Q1.s1+" )";

R1=Rs1;

}

//=========== SeeAns2 Function ============//

public void SeeAns2()

{

int Rs2=0, i;

for(i=0;i<Q2.s2;i++)

{

int xi= ch.getSelectedIndex();

if(xi==Q2.chRes)

Rs2++;

else

lbchAns.setText(ch.getSelectedItem());

}

Res2=Res2 + " You got : ( "+Rs2 + " ) out of ( "+Q2.s2+" )";

R2=Rs2;

for(i=0;i<Q2.s2;i++)

{

ch.select(Q2.chRes);

}

}

//=========== SeeAns3 Function ============//

//======== Check True False Function =========//

public int CheckTF()

{