How to Convert Boolean to String

Convert string to boolean in C#

I know this is not an ideal question to answer but as the OP seems to be a beginner, I'd love to share some basic knowledge with him... Hope everybody understands

OP, you can convert a string to type Boolean by using any of the methods stated below:

 string sample = "True";
 bool myBool = bool.Parse(sample);

 // Or

 bool myBool = Convert.ToBoolean(sample);

bool.Parse expects one parameter which in this case is sample, .ToBoolean also expects one parameter.

You can use TryParse which is the same as Parse but it doesn't throw any exception :)

string sample = "false";
Boolean myBool;

if (Boolean.TryParse(sample , out myBool))
{
    // Do Something
}

Please note that you cannot convert any type of string to type Boolean because the value of a Boolean can only be True or False

Hope you understand :)

Best approach to converting Boolean object to string in java

I don't think there would be any significant performance difference between them, but I would prefer the 1st way.

If you have a Boolean reference, Boolean.toString(boolean) will throw NullPointerException if your reference is null. As the reference is unboxed to boolean before being passed to the method.

While, String.valueOf() method as the source code shows, does the explicit null check:

public static String valueOf(Object obj) {
    return (obj == null) ? "null" : obj.toString();
}

Just test this code:

Boolean b = null;

System.out.println(String.valueOf(b));    // Prints null
System.out.println(Boolean.toString(b));  // Throws NPE

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For primitive boolean, there is no difference.

How to convert String object to Boolean Object?

Try (depending on what result type you want):

Boolean boolean1 = Boolean.valueOf("true");
boolean boolean2 = Boolean.parseBoolean("true");

Advantage:

• Boolean: this does not create new instances of Boolean, so performance is better (and less garbage-collection). It reuses the two instances of either Boolean.TRUE or Boolean.FALSE.
• boolean: no instance is needed, you use the primitive type.

The official documentation is in the Javadoc.

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UPDATED:

Autoboxing could also be used, but it has a performance cost.

I suggest to use it only when you would have to cast yourself, not when the cast is avoidable.

How to Convert Boolean to String

Simplest solution:

$converted_res = $res ? 'true' : 'false';

How to convert boolean to string?

How about the ternary operator?

Console.WriteLine("My first name is  " + ime + 
            ". My last name is  " + Last_name + "" +
            ". My job is " + job + ". My hobby is " + hobby + 
            ". I am " + years + " years old" + ". Married: " + (married? "yes" : "no"));

You could likewise add a property to Podaci the renders this as a string:

public class Podaci
{
    public string ime, lastName, job, hobby;
    public int years;
    public bool married;
    
    public string MarriedString => married?"Yes":"No";
    
    public void  Write()
    {
        Console.WriteLine("My first name is  " + ime + 
            ". My last name is  " + lastName + "" +
            ". My job is " + job + ". My hobby is " + hobby + 
            ". I am " + years + " years old" + ". Married: " + MarriedString);
    }
}

How to convert boolean value to string

string checkedValue = CheckBox1.Checked ? "-1" : "0";

TypeScript: Convert a bool to string value

This is either a bug in TypeScript or a concious design decision, but you can work around it using:

var myBool: bool = true;
var myString: string = String(myBool);
alert(myString);

In JavaScript booleans override the toString method, which is available on any Object (pretty much everything in JavaScript inherits from Object), so...

var myString: string = myBool.toString();

... should probably be valid.

There is also another work around for this, but I personally find it a bit nasty:

var myBool: bool = true;
var myString: string = <string><any> myBool;
alert(myString);

How can I convert a string to boolean in JavaScript?

Do:

var isTrueSet = (myValue === 'true');

using the identity operator (===), which doesn't make any implicit type conversions when the compared variables have different types.

This will set isTrueSet to a boolean true if the string is "true" and boolean false if it is string "false" or not set at all.

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Don't:

You should probably be cautious about using these two methods for your specific needs:

var myBool = Boolean("false");  // == true

var myBool = !!"false";  // == true

Any string which isn't the empty string will evaluate to true by using them. Although they're the cleanest methods I can think of concerning to boolean conversion, I think they're not what you're looking for.

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