Sawaal
  • Home/
  • Searching for g

 Searching for "g"

Q:

What is the argument of main() method?

Answer main() method accepts an array of String object as arguement.
Report Error

View answer Workspace Report Error Discuss

Subject: Java

Q:

Is Java a pure object oriented language?

Answer

Java uses primitive data types and hence is not a pure object oriented language.

Report Error

View answer Workspace Report Error Discuss

Subject: Java

Q:

For printing out strings, there are echo, print and printf. Explain the differences.

Answer - echo is the most primitive of them, and just outputs the contents following the construct to the screen. print is also a construct (so parentheses are optional when calling it), but it returns TRUE on successful output and FALSE if it was unable to print out the string. However, you can pass multiple parameters to echo, like:

and it will output the string "Welcome to TechInterviews!" print does not take multiple parameters. It is also generally argued that echo is faster, but usually the speed advantage is negligible, and might not be there for future versions of PHP. printf is a function, not a construct, and allows such advantages as formatted output, but it’s the slowest way to print out data out of echo, print and printf.
Report Error

View answer Workspace Report Error Discuss

Subject: PHP

Q:

Would you initialize your strings with single quotes or double quotes?

Answer Since the data inside the single-quoted string is not parsed for variable substitution, it’s always a better idea speed-wise to initialize a string with single quotes, unless you specifically need variable substitution.
Report Error

View answer Workspace Report Error Discuss

Subject: PHP

Q:

What’s the special meaning of __sleep and __wakeup?

Answer __sleep returns the array of all the variables than need to be saved, while __wakeup retrieves them.
Report Error

View answer Workspace Report Error Discuss

Subject: PHP

Q:

Will comparison of string "10" and integer 11 work in PHP?

Answer Yes, internally PHP will cast everything to the integer type, so numbers 10 and 11 will be compared.
Report Error

View answer Workspace Report Error Discuss

Subject: PHP

Q:

I am trying to assign a variable the value of 0123, but it keeps coming up with a different number, what’s the problem?

Answer PHP Interpreter treats numbers beginning with 0 as octal. Look at the similar PHP interview questions for more numeric problems.
Report Error

View answer Workspace Report Error Discuss

Subject: PHP

Q:

What does a special set of tags do in PHP?

Answer The output is displayed directly to the browser.
Report Error

View answer Workspace Report Error Discuss

Subject: PHP