Reverse a string in Java - Stack Overflow
I have "Hello World" kept in a String variable named hi. I need to print it, but reversed. How can I do this? I understand there is some kind of a function already built-in into Java that does th...
Defining field and its data type as a MAP in application.yaml
Oct 13, 2022 · Is it possible to define datatype for fields in application.yaml in spring boot? Eg: ingestiondata: NAME: String WEIGHT: Double DOB: Date Basically I want to externalize the data type
Store array of objects into text file in Java - Stack Overflow
Apr 8, 2020 · I need help with saving an array to a text file. So I have the following array private Passenger[] queueArray = new Passenger[30]; and this is the class that I have public class …
In Spring Boot what is the difference between CrudRepository and ...
Apr 29, 2022 · when building respositories in spring, in my repository interface i extend it using the below extends CrudRepository<EntityName, EntityType> where EntityName is the name of my Entity …
Setting JAVA_HOME environment variable in MS Windows
Set the JAVA_HOME Variable Windows 7 – Right click My Computer and select Properties > Advanced Windows 8 – Go to Control Panel > System > Advanced System Settings Windows 10 – Search for …
android - Beginning Programming: How do I pass an ArrayAdapter to ...
Sep 12, 2020 · I am trying to understand what other alternative I have if I can't write this code: arrayAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1,bluetoothDevices); …
What is the difference between JDK and JRE? - Stack Overflow
Dec 15, 2009 · The JRE is the Java Runtime Environment. It is a package of everything necessary to run a compiled Java program, including the Java Virtual Machine (JVM), the Java Class Library, the …
Do I need to set java JDK path in user variables or system variables ...
Aug 11, 2020 · Now I saw in javaTpoint tutorial that they were setting the path in user variables didn't create any JAVA_HOME variable. So my question is what is the difference between the set path in …
java - formatting a string :%20s - Stack Overflow
Hi I'm new to java programming while trying to write some simple codes I saw this formatted string I know how it works but my question is about the integer we put between % and s ... at first i t...
how to fetch data from database in Hibernate - Stack Overflow
Dec 26, 2013 · This is my class to fetch data from database package com.javatpoint.mypackage; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate ...