Related Topics Python Programing Question 42 How does Python handle overflow with large integers and what is the maximum size of an integer in Python? Answer In Python, integers are dynamically sized, which means that the maximum size of an integer is only limited by the available memory on the system. This is in contrast […]
Related Topics JAVA Programming Question 34 Can you explain the use of java.lang.StringIndexOutOfBoundsException class in Java programming? Answer The java.lang.StringIndexOutOfBoundsException class in Java is a runtime exception that indicates that an index or a range of indices is out of bounds for a given String. It is a subclass of the IndexOutOfBoundsException class. This exception
Related Topics JAVA Programming Question 29 What is the difference between Error and Exception in java.lang package? Answer In Java, errors and exceptions are both subclasses of the Throwable class, but they have different purposes and are used in different scenarios. An Error is a subclass of Throwable that represents an unrecoverable condition that should
Related Topics JAVA Programming Question 23 What is the purpose of java.lang.Objects class in Java programming? Answer The java.lang.Objects class was introduced in Java 7 and provides utility methods for performing various object-related operations. Some of the main purposes of the class are: To provide null-safe operations for comparing, hashing, and retrieving the string representation
Related Topics JAVA Programming Question 16 How does the hashCode() method work in java.lang.Object class? Answer The hashCode() method in the java.lang.Object class returns a hash code value for the object on which it is invoked. This method returns an integer value that represents the object’s memory address in the JVM’s heap memory. The hashCode()
Related Topics JAVA Programming Question 8 How does the clone() method work in java.lang.Object class? Answer The clone() method in the java.lang.Object class is used to create a new object that is a copy of an existing object. The general syntax for using clone() is: Object obj1 = new Object(); Object obj2 = obj1.clone(); To
Related Topics JAVA Programming Question 1 What is java.lang package and what is its significance in Java? Answer The java.lang package is a core package in Java that contains fundamental classes and interfaces that are automatically imported into every Java program. This package provides basic functionality for Java programs and includes classes for working with
Related Topics JAVA Programing Question 23 How do you handle null and empty Strings in Java, and what is the difference between them? Answer In Java, a null String is a reference to a String object that does not point to any memory location, while an empty String is a String object that has a
Related Topics JAVA Programming Question 18 Can you explain the use of the toLowerCase and toUpperCase methods in Java for converting a String to lowercase or uppercase? Answer The toLowerCase() and toUpperCase() methods in Java are used to convert the characters in a string to lowercase or uppercase, respectively. Here’s an example of using the
Related Topics JAVA Programming Question 12 Can you give an example of using the indexOf method in Java for finding the first occurrence of a substring in a String? Answer In Java, the indexOf() method is used to find the index of the first occurrence of a specified substring in a string. The method takes
