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How to measure time taken by a function in java ?

Last Updated: 30 April 2024

We can measure the time taken by a function inJavawith the help of java.lang.System.nanoTime() and java.lang.System.currentTimeMills() methods. These methods return the cu...read more

Executable Comments in Java

Last Updated: 11 November 2022

A comment is a statement that is not executed by the compiler or the interpreter, but before the lexical transformation of the program in the compiler, the contents of the...read more

Technical Scripter

Java Function/Constructor Overloading Puzzle

Last Updated: 03 September 2018

Predict the output of the programJava public class GFG { private GFG(Object o) { System.out.println(Object); } private GFG(double[] d) { ...read more

Java-Constructors

Java-Overloading

A Java Random and StringBuffer Puzzle

Last Updated: 20 October 2018

Predict the output of the programJava import java.util.Random;public class GFG { private static Random rd = new Random(); public static void main(String[...read more

java-StringBuffer

Java Ternary Operator Puzzle

Last Updated: 28 April 2025

In Java, the ternary operator is a simple way to perform conditional operations. It evaluates a condition and returns values depending on whether the condition is true or ...read more

Java Chained Typecasting

Last Updated: 27 May 2025

In Java, typecasting between different data types plays a very important role, but it can also lead to unexpected errors, especially when we have to deal with signed and u...read more

Java-Data Types

Assigning long values carefully in Java to avoid overflow

Last Updated: 07 December 2018

Predict the output of the following programJava public class LongDivision { public static void main(String[] args) { final long MICROS_PER_DAY = 24 * 60 *...read more

Java-Data Types

Infinite Loop Puzzles in Java

Last Updated: 05 May 2025

In Java, Infinite loops are a very important concept to understand. Infinite loops can occur due to various reasons such as overflows, unboxing and logic comparisons. In t...read more

Difference between x++ and x=x+1 in Java

Last Updated: 08 November 2022

In x++, it increase the value of x by 1 and in x=x+1 it also increase the value of x by 1. But the question is that both are same or there is any difference between them. ...read more

Interesting interview question on hashCode and equals method

Last Updated: 25 September 2017

Prerequisite: Equal and Hashcode Methods in Java , Why to override equal and hashcode methods hashCode and equals method are frequently asked in Java interviews. In genera...read more

Few Tricky Programs in Java

Last Updated: 25 September 2017

Comments that execute : Till now, we were always taught "Comments do not Execute". Let us see today "The comments that execute"Following is the code snippet:Java ...read more

Technical Scripter