how to convert string to boolean in java

To convert a string to a boolean value in Java, you can use the Boolean.parseBoolean method.

The Boolean.parseBoolean method takes a string as an argument and returns the equivalent boolean value. If the string is equal to the string "true" (ignoring case), the method returns true, otherwise it returns false.

Here is an example of how you can use the Boolean.parseBoolean method to convert a string to a boolean value in Java:

String s = "true";
boolean b = Boolean.parseBoolean(s);

This code defines a String variable called s and assigns it the value "true", and then uses the Boolean.parseBoolean method to parse the string into a boolean value and store it in a boolean variable called b. The output of this code will be true.

You can also use the Boolean.valueOf method to convert a string to a boolean value in Java. This method works in the same way as the Boolean.parseBoolean method, but it returns a Boolean object instead of a boolean primitive value.

Here is an example of how you can use the Boolean.valueOf method to convert a string to a boolean value in Java:

String s = "true";
Boolean b = Boolean.valueOf(s);

This code defines a String variable called s and assigns it the value "true", and then uses the Boolean.valueOf method to parse the string into a Boolean object and store it in a Boolean variable called b. The output of this code will be a Boolean object with the value true.

Note that the Boolean.parseBoolean and Boolean.valueOf methods only recognize the strings "true" and "false" (ignoring case) as valid boolean values. If the string contains a different value, the method will return false. For example, the following code will return false:

String s = "yes";
boolean b = Boolean.parseBoolean(s);
System.out.println(b);

output:

false