Hi Friend,

1)
import java.io.*;
class Program{
public static void main(String[] args) throws Exception{
System.out.print("Enter String:");
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String input = reader.readLine();
String st[]=input.split("");
String reversedString="";
for(int i = st.length-1; i >= 0; i--){
reversedString+=st[i];
}
if(input.equalsIgnoreCase(reversedString)){
System.out.println("String is Palindrome");
}
else{
System.out.println("String is not a Palindrome");
}
}
}

2)
import java.io.*;
import java.util.regex.*;

public class Read {
public static void main(String[] args) throws Exception {

BufferedReader bf = new BufferedReader(new FileReader("C:\\file.txt"));
String line;
String data = "";
while ((line = bf.readLine()) != null) {
String replacedData = line.replaceAll("[|,|:|/|\\|\'><*}{^();]"," ");
System.out.println(replacedData);
}
}
}

Thanks