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Java - convert String to boolean

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Created by:

rmlocerd

302

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

Short solutions:

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// 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:

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

1. Using Boolean.parseBoolean()

Edit

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public class Example1 {
​
    public static void main(String[] args) {
        String str = "true";
        boolean value = Boolean.parseBoolean(str);
        System.out.println(value); // true
    }
}

Output:

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true

2. Using Boolean.valueOf()

Edit

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public class Example2 {
​
    public static void main(String[] args) {
        String str = "true";
        Boolean value = Boolean.valueOf(str);
        System.out.println(value); // true
    }
}

Output:

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true

3. Using constructor - new Boolean(String s)

Edit

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public class Example3 {
​
    public static void main(String[] args) {
        String str = "true";
        Boolean value = new Boolean(str);
        System.out.println(value); // true
    }
}