Java Boolean parseBoolean() Method

The parseBoolean() method of Boolean class returns a Boolean value for the specified String argument. It returns true if and only if string’s value is equal to “true”, else it returns false.

Syntax:

public static boolean parseBoolean(String s)

Parameters:

The parameter ‘s’ represents the string value.

Return Value:

The parseBoolean() method returns the Boolean value represented by the string argument ‘s’.

• It returns true, if and only if the string argument is equal (ignoring case) to the string “true”.
• It returns false for any other argument other than true.

Example 1:

public class JavaBooleanparseBooleanMethodExample1 {
    static int i=1;
    public static void main(String[] args) {
        String str="true";
       //returns the Boolean value represented by the string argument
        Boolean val1=(Boolean.parseBoolean(str));
        System.out.println(i+ ". "+val1);
    }
}

Output:

1. true

Example 2:

public class JavaBooleanParseBooleanMethodExample2 {
    static int i=1;
    public static void main(String[] args) {
        String str=null;
       //returns the boolean value false for null
        Boolean val1=(Boolean.parseBoolean(str));
        System.out.println(i+ ". "+val1);
    }
}

Output:

1. false

Example 3:

public class JavaBooleanParseBooleanMethodExample3 {
    static int i=1;
    public static void main(String[] args) {
        String str="aanmsggsavbj";
       //returns the boolean value false for any other string argument
        Boolean val1=(Boolean.parseBoolean(str));
        System.out.println(i+ ". "+val1);
    }
}

Output:

1. false