java convert strnig to int code example

Example 1: in java how to convert string to integer

class scratch{
    public static void main(String[] args) {
        String str = "54";
        int num = Integer.parseInt("54");
        double doub = Double.parseDouble("54");
    }
}

Example 2: java how to convert string to int

class Scratch{
    public static void main(String[] args){
        String str = "50";
        System.out.println( Integer.parseInt( str ));   // Integer.parseInt()
    }
}