exception and number format exception which is a simple calcu automatically add, multiply, subtract and divide two numbers th inputted by users. The arithmetic exception will be displayed v message. The number format exception will give error messages and num2 if string inputs are not parsed as integer. private String evaluate()

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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b) Rewrite the code in Figure 2 to include exception handlers to catch arithmetic
exception and number format exception which is a simple calculator that can
automatically add, multiply, subtract and divide two numbers that have been
inputted by users. The arithmetic exception will be displayed with exception
message. The number format exception will give error messages for both num1
and num2 if string inputs are not parsed as integer.
private String evaluate()
{
int num1
Integer.parseInt(numStr1);
Integer.parseInt(numStr2);
int num2
int result = 0;
switch (op)
{
case '+':
result = num1 + num2;
break;
case '-':
result = num1 - num2;
break;
case
result = num1 * num2;
break;
case '/' :
result = num1 / num2;
}
return String.valueOf(result);
}
}
Transcribed Image Text:b) Rewrite the code in Figure 2 to include exception handlers to catch arithmetic exception and number format exception which is a simple calculator that can automatically add, multiply, subtract and divide two numbers that have been inputted by users. The arithmetic exception will be displayed with exception message. The number format exception will give error messages for both num1 and num2 if string inputs are not parsed as integer. private String evaluate() { int num1 Integer.parseInt(numStr1); Integer.parseInt(numStr2); int num2 int result = 0; switch (op) { case '+': result = num1 + num2; break; case '-': result = num1 - num2; break; case result = num1 * num2; break; case '/' : result = num1 / num2; } return String.valueOf(result); } }
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