Create a program where you apply the concept of PDA (Pushdown automata) using stack where program will check if the input is a balanced symbols or not. See attached photo for the examples
Create a program where you apply the concept of PDA (Pushdown automata) using stack where program will check if the input is a balanced symbols or not. See attached photo for the examples
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Java Program
Create a program where you apply the concept of PDA (Pushdown automata) using stack where program will check if the input is a balanced symbols or not. See attached photo for the examples
![PUSH DOWN AUTOMATA PROGRAM
IN JAVA FOR EQUAL NO OF A'S AND
B'S
JUNE 5, 2015 ANKUR LEAVE A COMMENT
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import java.io.*;
class Pda {
}
static char st[] = new char[20];
static int ptr = 0;
static void push(char e) {
st[ptr] = e;
ptr++;
}
static void pop() {
ptr--;
}
public static void main(String Args[]) throws IOException
BufferedReader obj = new BufferedReader (new Inputstr
string ip;
System.out.println("Enter String:");
ip = obj.readLine();
int 1;
boolean f= false;
int i;
for (i = 0; i <ip.length(); i++) {
if (ip.charAt(i) == 'a') {
push('a');
For
for
If
} else {
}
50 /* OUTPUT
break;
(iip.length(); i++) {
if (ip.charAt(i) == 'a') {
f = false;
break;
} else {
}
(ptr == 0) {
f = true;
pop();
if (f == true) {
System.out.println("string Accepted");
System.out.println("string rejected");
} else {](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F09ca6621-3938-4d66-95d0-000192e6222d%2Fbeb70e43-047b-43b7-b837-0c46516b30cd%2F407oytd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:PUSH DOWN AUTOMATA PROGRAM
IN JAVA FOR EQUAL NO OF A'S AND
B'S
JUNE 5, 2015 ANKUR LEAVE A COMMENT
123456789912341516718 19 281223425 25 7 28 29 38 31 32 33 34 35368388245455558
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import java.io.*;
class Pda {
}
static char st[] = new char[20];
static int ptr = 0;
static void push(char e) {
st[ptr] = e;
ptr++;
}
static void pop() {
ptr--;
}
public static void main(String Args[]) throws IOException
BufferedReader obj = new BufferedReader (new Inputstr
string ip;
System.out.println("Enter String:");
ip = obj.readLine();
int 1;
boolean f= false;
int i;
for (i = 0; i <ip.length(); i++) {
if (ip.charAt(i) == 'a') {
push('a');
For
for
If
} else {
}
50 /* OUTPUT
break;
(iip.length(); i++) {
if (ip.charAt(i) == 'a') {
f = false;
break;
} else {
}
(ptr == 0) {
f = true;
pop();
if (f == true) {
System.out.println("string Accepted");
System.out.println("string rejected");
} else {
![5
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ខខខ៨៨៣ ៦ ខ គ ១៩៩៩២៩២៩
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String braces = sc.nextLine();
//split braces
String[] brace = braces.split("");
try {
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for(int i = 0; i < braće.length; i++) {
//checks if top of stack matches
if(brace[i] == ")") {
73}
74
}
}
}
String top list.peek();
if(top
==
else
=
"(")
list.pop();
==
Jelse if(brace[i] "") {
if(list.peek() = "")
list.pop();.
System.out.println("These Braces are not Balanced!");break;
}
else
Jelse if(brace[i]
if(list.peek()
list.pop();
System.out.println("These Braces are not Balanced!"); break;
else
Jelse
list.push();
==
}catch(Exception e) {
System.out.println(e);
"}") {
="{")
System.out.println("These Braces are not Balanced!"); break;
ER
}catch(Exception e) {
System.out.println(e);
G&
I
Writable
Smart Insert
45:34:966
DR 31°C Cloudy](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F09ca6621-3938-4d66-95d0-000192e6222d%2Fbeb70e43-047b-43b7-b837-0c46516b30cd%2Fnrebkky_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5
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ខខខ៨៨៣ ៦ ខ គ ១៩៩៩២៩២៩
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String braces = sc.nextLine();
//split braces
String[] brace = braces.split("");
try {
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for(int i = 0; i < braće.length; i++) {
//checks if top of stack matches
if(brace[i] == ")") {
73}
74
}
}
}
String top list.peek();
if(top
==
else
=
"(")
list.pop();
==
Jelse if(brace[i] "") {
if(list.peek() = "")
list.pop();.
System.out.println("These Braces are not Balanced!");break;
}
else
Jelse if(brace[i]
if(list.peek()
list.pop();
System.out.println("These Braces are not Balanced!"); break;
else
Jelse
list.push();
==
}catch(Exception e) {
System.out.println(e);
"}") {
="{")
System.out.println("These Braces are not Balanced!"); break;
ER
}catch(Exception e) {
System.out.println(e);
G&
I
Writable
Smart Insert
45:34:966
DR 31°C Cloudy
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