Computers and Technology, 07.04.2020 20:37 fordenboer
Convert infix to postfix
(Convert infix to postfix)
Note:
Postfix notation is a way of writing expression without using parentheses. For example, the expression ( 11 + 12 ) * 13 would be written as 11 12 + 13 *
Assume that ALWAYS there is a space between operands and operators in the input expression.
Use two stacks, one to store the operands and one to store the operators.
Your program only accpets following operators :
( )
+
-
/
*
Write a method to converts an infix expression into a postfix expression using the following method:
String infixToPostfix(String expression)
For example, the method should convert the infix expression
( 13 + 25 ) * 34 to 13 25 + 34 *
and
20 * ( 10 + 30 ) to 20 10 30 + *.
import java. util.*;
import java. lang.*;
import java. io.*;
class InfixToPostfix{
public String infixToPostfix(String expression) {
}
}
class DriverMain{
public static void main(String args[]){
Scanner input = new Scanner(System. in);
InfixToPostfix postfix = new InfixToPostfix();
try {
System. out. println(postfix. infixToPostfix(input. nextLine()));
}
catch (Exception ex) {
System. out. println("Wrong expression");
}
}
}
only make change to class infixToPostfix
Answers: 2
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Convert infix to postfix
(Convert infix to postfix)
Note:
Pos...
(Convert infix to postfix)
Note:
Pos...
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