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Java - convert String to boolean

14 points
Created by:
Kate_C
19790

In Java, we can convert String to boolean in couple of different ways.

Short solutions:

// solution 1
boolean value1 = Boolean.parseBoolean("true"); // true

// solution 2
Boolean value2 = Boolean.valueOf("true"); // true

// solution 3
Boolean value3 = new Boolean("true"); // true

We can also use public static final properties of Boolean class, code example:

Boolean valueTrue = Boolean.TRUE; // true
Boolean valueFalse = Boolean.FALSE; // false

1. Using Boolean.parseBoolean()

public class Example1 {

    public static void main(String[] args) {
        String str = "true";
        boolean value = Boolean.parseBoolean(str);
        System.out.println(value); // true
    }
}

Output:

true

2. Using Boolean.valueOf()

public class Example2 {

    public static void main(String[] args) {
        String str = "true";
        Boolean value = Boolean.valueOf(str);
        System.out.println(value); // true
    }
}

Output:

true

3. Using constructor - new Boolean(String s)

public class Example3 {

    public static void main(String[] args) {
        String str = "true";
        Boolean value = new Boolean(str);
        System.out.println(value); // true
    }
}

Output:

true

 

Java - String conversion

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