Tag: Java

How to sort primitive data in the list

How to sort primitive data in the list There is a list having primitive data, then how to sort the data in the list. List  – Integer Data Type   ListIntegerSorting.java package com.narayanatutorial.primitive.sorting; import java.util.ArrayList; import java.util.Collections; import java.util.List; public class ListIntegerSorting { public static void main(String args[]) { List<Integer> list = new ArrayList<Integer>(); list.add(123); […]

How to check Java Heap Memory in windows system

Find Minimum Heap Memory Open windows command prompt and then enter the following command. javaw -XX:+PrintFlagsFinal | find “InitialHeapSize” Ouput Find Maximum Heap Memory Open windows command prompt and then enter the following command. javaw -XX:+PrintFlagsFinal | find “MaxHeapSize” Output Find ThreadStackSize , HeapSizePerGCThread Memory Open windows command prompt and then enter the following command. […]

Version 1.7.0_67 of the JVM is not suitable for this product. Version 1.8 or greater is required

System Environment PATH Variable Setup for JAVA

Eclipse Jee 2018-09 will be launched by using java 1.8 and above. So we need to install java 1.8 or above versions, either 32 bit or 64 bit according your system supports. After installing, you need to set system environment PATH variable of JDK path like C:\Program Files\Java\jdk<version>\jre\bin Error Screen Go to –> Right Click […]

Enhancement 1.6 version

Enhancement Sun people introduces, the following 2 interface in 1.6 version as the part of collection Framework. 1) NavigableSet 2) NavigableMap. NavigableSet It is the child interface of SortedSet, which defines several methods to support navigation. Ceiling(e): It returns the lowest element, which is greater than equal to e. Higher(e): Returns the lowest element which […]