Java program to convert a string to boolean

Java program to convert a string to boolean using valueOf() :

In this example, we will learn how to convert a string to boolean value. For that, we will use one static method valueOf(String) of the Boolean class. This class is defined as below :

public static Boolean valueOf(String s) {
        return parseBoolean(s) ? TRUE : FALSE;
    }

So, it calls parseBoolean() method. It is defined as below :

public static boolean parseBoolean(String s) {
        return ((s != null) && s.equalsIgnoreCase("true"));
    }

So, if we will put input as true , it will return boolean true and else return false.

Java program :

import java.util.Scanner;

public class Main {
    
    public static void main(String[] args) throws java.lang.Exception {
        //1
        Scanner scanner = new Scanner(System.in);
        
        //2
        String str = scanner.next();

        //3
        Boolean booleanValue = Boolean.valueOf(str);
        
        //4
        System.out.print("Boolean value is "+booleanValue);
    }

}

Sample Output :

TruE
Boolean value is true

true
Boolean value is true

truE
Boolean value is true

false
Boolean value is false

one
Boolean value is false

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