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packagesay;
importjava.awt.BorderLayout;
importjava.awt.Color;
importjava.awt.event.ActionEvent;
importjava.awt.event.ActionListener;
importjavax.swing.JButton;
importjavax.swing.JComboBox;
importjavax.swing.JFrame;
importjavax.swing.JLabel;
importjavax.swing.JPanel;
importjavax.swing.JTextField;
importjava.util.*;
/*
* @Sayan Surya Shaw
*/
/*
* @Sayan Surya Shaw
*/
publicclassLineCodingextendsJFrameimplementsActionListener {
publicintx1=300, x2=300, y1=100, y2=100;
int [] baud;
int [] bit;
JTextFieldinpData = newJTextField(12);
JTextFieldrcvData = newJTextField(12);
JComboBox<String> techniques = null;
JPaneldrawPanel = newJPanel();
publicLineCoding() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(1000,400);
setTitle("Line Coding Techniques....");
initComponents();
}
privatevoidinitComponents() {
JPaneltopPanel = newJPanel();
topPanel.add(newJLabel("Input Data:"));
topPanel.add(inpData);
Stringlist[] = {"NRZ-I","NRZ-L","RZ","Manchester","Differential Manchester","AMI","Pseudoternary"};
techniques = newJComboBox<String>(list);
topPanel.add(newJLabel("Technique:"));
topPanel.add(techniques);
topPanel.add(newJLabel("Received Data:"));
topPanel.add(rcvData);
JButtonencodeBtn = newJButton("Encode");
JButtondecodeBtn = newJButton("Decode");
JButtonclrBtn = newJButton("Clear");
topPanel.add(encodeBtn);
encodeBtn.addActionListener(this);
topPanel.add(decodeBtn);
decodeBtn.addActionListener(this);
topPanel.add(clrBtn);
clrBtn.addActionListener(this);
drawPanel.setBackground(Color.WHITE);
add(drawPanel);
add(topPanel,BorderLayout.NORTH);
}
publicstaticvoidmain(String[] args) {
LineCodingf = newLineCoding();
f.setVisible(true);
}
@Override
publicvoidactionPerformed(ActionEvente) {
if(e.getActionCommand().equals("Encode")){
encode();
}elseif(e.getActionCommand().equals("Decode")){
decode();
}elseif(e.getActionCommand().equals("Clear")){
repaint();
}
}
privatevoidencode() {
drawPanel.getGraphics().drawString("Implement "+techniques.getSelectedItem()+" Encoding Technique!", 400, 40);
chardata[]=inpData.getText().toCharArray();
// NRZ-L
if(techniques.getSelectedItem()=="NRZ-L") {
baud = newint[data.length];
for(inti=0;i<data.length;i++){
if(data[i]=='1'){
baud[i]=50;
}
else{
baud[i]=-50;
}
}
rcvData.setText(Arrays.toString(baud));
draw(baud);
}
//NRZ-I
if(techniques.getSelectedItem()=="NRZ-I") {
baud = newint[data.length];
//baud[0]= 50;
y1=50;
if(data[0]=='1')
baud[0]= -50;
else
baud[0]=50;
for(inti=1;i<data.length;i++){
if(data[i]=='1'){
baud[i]=-baud[i-1];
}
else{
baud[i]=baud[i-1];
}
}
rcvData.setText(Arrays.toString(baud));
draw(baud);
}
//RZ
if(techniques.getSelectedItem()=="RZ") {
baud = newint[data.length*2];
intj=0;
for(inti=0;i<data.length;i++){
if(data[i]=='1'){
baud[j]=50;
baud[j+1]=0;
j=j+2;
}
else{
baud[j]=-50;
baud[j+1]=0;
j=j+2;
}
}
rcvData.setText(Arrays.toString(baud));
draw(baud);
}
//Manchester
if(techniques.getSelectedItem()=="Manchester") {
baud = newint[data.length*2];
intj=0;
for(inti=0;i<data.length;i++){
if(data[i]=='1'){
baud[j]=50;
baud[j+1]=-50;
}
else{
baud[j]=-50;
baud[j+1]=+50;
}
j=j+2;
}
rcvData.setText(Arrays.toString(baud));
draw(baud);
}
//Differential Manchester
if (techniques.getSelectedItem() == "Differential Manchester") {
intj = 2;
y1=50;
baud = newint[data.length*2];
if (data[0] == '1') {
baud[0] = 50;
} elseif (data[0] == '0') {
baud[0] = -50;
}
baud[1] = baud[0] * (-1);
for (inti = 1; i < data.length; i++) {
if (data[i] == '1') {
baud[j] = baud[j - 1];
} else {
baud[j] = baud[j - 1]*(-1);
}
baud[++j] = baud[j - 1]*(-1);
j++;
}
rcvData.setText(Arrays.toString(baud));
draw(baud);
}
if(techniques.getSelectedItem()=="AMI") {
baud = newint[data.length];
//baud[0]= 50;
intcount=0;
for(inti=0;i<data.length;i++){
if(data[i]=='1'){
count++;
if(count%2==0)
baud[i]= -50;
else
baud[i]= 50;
}
if(data[i]=='0')
baud[i]=0;
}
rcvData.setText(Arrays.toString(baud));
draw(baud);
}
if(techniques.getSelectedItem()=="Pseudoternary") {
baud = newint[data.length];
//baud[0]= 50;
intcount=0;
for(inti=0;i<data.length;i++){
if(data[i]=='0'){
count++;
if(count%2==0)
baud[i]= -50;
else
baud[i]= 50;
}
if(data[i]=='1')
baud[i]=0;
}
rcvData.setText(Arrays.toString(baud));
draw(baud);
}
}
privatevoiddecode() {
drawPanel.getGraphics().drawString("Implement "+techniques.getSelectedItem()+" Decoding Technique!", 400, 200);
// NRZ-L
if(techniques.getSelectedItem()=="NRZ-L") {
x1=300;y1=100;x2=300;y2=100;
intj=0;
bit=newint[baud.length];
for(inti=0;i<baud.length;i++){
if(baud[i]==50){
bit[j]=1;
j++;
}
else {
bit[j]=0;
j++;
}
}
rcvData.setText(Arrays.toString(bit));
}
//NRZ-I
if(techniques.getSelectedItem()=="NRZ-I") {
x1=300;y1=100;x2=300;y2=100;
intj=1;
bit=newint[baud.length];
if(baud[0]==50)
bit[0]=0;
else
bit[0]=1;
for(inti=1;i<baud.length;i++){
if(baud[i-1]!=baud[i]){
bit[i]=1;
}
else {
bit[i]=0;
}
}
rcvData.setText(Arrays.toString(bit));
}
//RZ
if(techniques.getSelectedItem()=="RZ") {
x1=300;y1=100;x2=300;y2=100;
intj=0;
bit=newint[baud.length/2];
for(inti=0;i<baud.length;i=i+2){
if(baud[i]==50){
bit[j]=1;
j++;
}
else {
bit[j]=0;
j++;
}
}
rcvData.setText(Arrays.toString(bit));
}
//Manchester
if(techniques.getSelectedItem()=="Manchester") {
x1=300;y1=50;x2=300;y2=50;
intj=0;
bit=newint[baud.length/2];
for(inti=0;i<baud.length;i=i+2){
if(baud[i]==-50)
bit[j]=0;
else
bit[j]=1;
j++;
}
rcvData.setText(Arrays.toString(bit));
}
//Differential Manchester
if(techniques.getSelectedItem()=="Differential Manchester") {
x1=300;y1=50;x2=300;y2=50;
intj=0;
bit=newint[baud.length/2];
for(inti=0;i<baud.length;i=i+2){
if(i==0){
if(baud[i]==50)
bit[j]=1;
elsebit[j]=0;
j++;
}
else {
if(baud[i]==baud[i-1])
bit[j]=1;
elsebit[j]=0;
j++;
}
}
rcvData.setText(Arrays.toString(bit));
}
if(techniques.getSelectedItem()=="AMI") {
x1=300;y1=100;x2=300;y2=100;
intj=0;
bit=newint[baud.length];
for(inti=0;i<baud.length;i++){
if(baud[i]==50 || baud[i]==-50){
bit[j]=1;
j++;
}
else {
bit[j]=0;
j++;
}
}
rcvData.setText(Arrays.toString(bit));
}
if(techniques.getSelectedItem()=="Pseudoternary") {
x1=300;y1=100;x2=300;y2=100;
intj=0;
bit=newint[baud.length];
for(inti=0;i<baud.length;i++){
if(baud[i]==50 || baud[i]==-50){
bit[j]=0;
j++;
}
else {
bit[j]=1;
j++;
}
}
rcvData.setText(Arrays.toString(bit));
}
}
privatevoiddraw(int []baud) {
for(inti=0;i<baud.length;i++){
// x1=300;
//y1=100;
if(baud[i]==100-y1){
y2=y1;
x2=x1+30;
drawPanel.getGraphics().drawLine(x1,y1,x2,y2);
}
else{
x2=x1;
y2=100-baud[i];
drawPanel.getGraphics().drawLine(x1,y1,x2,y2);
y1=y2;
x2=x1+30;
drawPanel.getGraphics().drawLine(x1,y1,x2,y2);
}
x1=x2;
y1=y2;
}
}
/*public void drawDashedLine(Graphics g, int x1, int y1, int x2, int y2){
//creates a copy of the Graphics instance
Graphics2D g2d = (Graphics2D) g.create();
//set the stroke of the copy, not the original
Stroke dashed = new BasicStroke(3, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 0, new float[]{9}, 0);
g2d.setStroke(dashed);
g2d.drawLine(x1, y1, x2, y2);
//gets rid of the copy
g2d.dispose();
}*/
}