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Two variables, x and y, supposedly hold strings of digits. Write code that converts these to integers and assigns a variable z the sum of these two integers. Make sure that if either x and y has bad data (that is, not a string of digits), z will be assigned the value of -1.

Respuesta :

database123

Code in Java:


public class string_to_int {

public static void main(String args[])

{

       String x = "3";

       String y = "5";

       int num1 = Integer.parseInt(x);

       int num2 = Integer.parseInt(y);

       if (( x intanceof String) && (y instanceof String) ){

       System.out.println("z: " + (num1 + num2)); }

       else {

        return -1;

}

}

}

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# string of digits

x = '456'

# string of digits

y = '789'

# check whether the variable x and y contains integer values or not

if(str.isdigit(x) and str.isdigit(y)):

     # convert the x value into integer

     tmpX = int(x)

     # convert the y value into integer

     tmpY = int(y)

     # sum of x and y

      z = tmpX + tmpY

# If x and y contains bad data

else:

      # assign value of z as "-1"

      z = -1;

      print('Not a string of digits')

#Display the result on the screen

print('Sum is',z)

Further explanation

Variable:

  1. capricious, not fixed;
  2. declaration of something that has a variation in value
  3. Different in programming languages ​​are also called symbols that represent certain values, variables known in sub-programs are called local variables. while those known in general/intact in one program are called global variables.

The following are various types of data in Java:

char: Character data type, example Z

int: numbers or integers, example 29

float: decimal number, example 2.1

double: decimal number too, but the capacity is bigger, for example, 2.1

String: a collection of characters that make up the text, for example, Hello World!

boolean: data types that are only true and false

Learn More

String to Integer https://brainly.com/question/11534018

Simple program https://brainly.com/question/11534018

Details

Class: High School

Subject: Computers and Technology

Keywords: program, integer, string

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