Core java

In this post, we will see how to display negative number in Parentheses in Java. We can use pattern #,##0.00;(#,##0.00) with DecimalFormat‘s format() to display negative number in Parenthesis in Java. package org.arpit.java2blog; import java.text.DecimalFormat; public class DisplayNegativeNumbersInParenthesis { public static void main(String[] args) { DecimalFormat df = (DecimalFormat) DecimalFormat.getInstance(); String pattern = "#,##0.00;(#,##0.00)"; df.applyPattern(pattern); […]

In this post, we will see how to increment for loop by 2 in Java. There are several looping statements available in Java and one of them is for loop in java. There are three parts of for loop. Initialization Condition Increment or decrement for (initialization; condition; increment/decrement) { //block of statements } Initialization: Initialization […]

In this post, we will see how to get list of months name in Java. Using DateFormatSymbols’s getMonth() method We can use DateFormatSymbols's getMonth() to get list of months in Java. It will provide complete month names like January, February etc. package org.arpit.java2blog; import java.text.DateFormatSymbols; import java.util.Arrays; public class GetListOfMonths { public static void main(String[] […]

In this post, we will see how to convert 0 and 1 to Boolean in Java. Given “0” and “1” in String datatype, convert it to boolean datatype where “0” represents false “1” represents true Convert 0 and 1 to Boolean in Java Here is program to convert 0 and 1 to boolean in Java […]

1. Introduction In this post, we will learn about how to replace backslash with forward slash in java. backslash() is used as escape character in Java. For example: It can be used to: Used in special characters such as new line character \n, tab \t Write unicode characters like \u%04x. That’s the reason we can’t […]

Learn about how to remove backslash from String in Java. backslash() is used as escape character in Java. For example it can be used to: Create special characters such as new line character \n, tab \t Write unicode characters like \u%04x. Ways to Remove Backslash from String in Java 1. Using replace() Method Use String’s […]

In this post, we wil see how to convert 0 to 1 and 1 to 0 in java. There are lots of ways to convert 0 to 1 and 1 to 0 in Java. Let’s go through them. Using Subtraction This is one of easiest solution to swap 0 to 1 and vice versa. Just […]

In this post, we will get unix timestamp in Java. As per wikipedia Unix time is a system for describing a point in time. It is the number of seconds that have elapsed since the Unix epoch, excluding leap seconds. The Unix epoch is 00:00:00 UTC on 1 January 1970. Unix time is standard way […]

This article discusses cases of returning an ArrayList in Java from a method. An ArrayList in Java is a collection of elements of the same data type under a single variable name. In different cases, you can return an ArrayList from a method in Java. These cases are as given below. Returning ArrayList from a […]