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Gwar [14]
3 years ago
5

Whenever they are passed as parameters to a function, the IO classes istream and ostream must be passed using a pass-by-referenc

e parameter passing scheme.
Select one:

a. FALSE

b. TRUE
Computers and Technology
1 answer:
morpeh [17]3 years ago
7 0

Answer:

b. TRUE

Explanation:

Whenever they are passed as parameters to a function, the IO classes istream and ostream must be passed using a pass-by-reference parameter passing scheme.

This is because , assuming a pass by value semantics would require us to copy the value of the istream or ostream object which would be meaningless. In fact these objects don't even have a copy constructor at all. So such objects are always passed by reference.

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How do I find a space in my String and replace it? JAVA
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Answer:

This article shows how to use regex to remove spaces in between a String.

A string with spaces in between.

String text = "Hello World Java.";

We want to remove the spaces and display it as below:

Hello World Java.

1. Java regex remove spaces

In Java, we can use regex \\s+ to match whitespace characters, and replaceAll("\\s+", " ") to replace them with a single space.

Regex explanation.

`\\s` # Matches whitespace characters.

+ # One or more

StringRemoveSpaces.java

package com.mkyong.regex.string;

public class StringRemoveSpaces {

public static void main(String[] args) {

String text = "Hello World Java.";

String result = text.replaceAll("\\s+", " ");

System.out.println(result);

}

}

Output

Terminal

Hello World Java.

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