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3 years ago

Accepted identifier for a variable in PHP except:

Computers and Technology

1 answer:

Svetradugi [14.3K]3 years ago

7 0

Answer:

b. & Puihaha

Explanation:

PHP variables are supposed to start with a $ sign.

Other rules followed by PHP variables are:

Starting character in variable name (after $) must be letter or _.

Other characters in variable names can be letters,numbers or _.

a. $_Puihaha

c. $Pui_haha

d. $Puihaha

satisfy these rules.

Whereas , b. & Puihaha does not satisfy as it starts with '&'. Moreover it also contains an invalid space character in the variable.

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4 years ago

Create a function void process(char ch, int x, int y)- to accept an arithmetic operator (+,-./, in argum

saul85 [17]

Answer:

The program is as follows:

import java.util.*;

public class Main{

public static void process(char ch, int x, int y){

if(ch == '+'){

System.out.print(x+y); }

else if(ch == '-'){

System.out.print(x-y); }

else if(ch == '*'){

System.out.print(x*y); }

else if(ch == '/'){

if(y!=0){

double num = x;

System.out.print(num/y); }

else{

System.out.print("Cannot divide by 0"); } }

else{

System.out.print("Invalid operator"); }

}

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

int x, y;

char ch;

System.out.print("Enter two integers: ");

x = input.nextInt(); y = input.nextInt();

System.out.print("Enter operator: ");

ch = input.next().charAt(0);

process(ch,x, y);

}

Explanation:

The function begins here

public static void process(char ch, int x, int y){

If the character is +, this prints the sum of both integers

if(ch == '+'){

System.out.print(x+y); }

If the character is -, this prints the difference of both integers

else if(ch == '-'){

System.out.print(x-y); }

If the character is *, this prints the product of both integers

else if(ch == '*'){

System.out.print(x*y); }

If the character is /, this prints the division of both integers.

else if(ch == '/'){

if(y!=0){

double num = x;

System.out.print(num/y); }

else{

This is executed if the denominator is 0

System.out.print("Cannot divide by 0"); } }

Invalid operator is printed for every other character

else{

System.out.print("Invalid operator"); }

}

The main begins here

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

This declares both integers

int x, y;

This declares the operator

char ch;

Get input for both integers

System.out.print("Enter two integers: ");

x = input.nextInt(); y = input.nextInt();

Get input for the operator

System.out.print("Enter operator: ");

ch = input.next().charAt(0);

Call the function

process(ch,x, y);

}

6 0

3 years ago