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How to Install Java? How to set Paths in Java?

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Step-1: Download the JDK From official website is: https://www.oracle.com/technetwork/java/javase/downloads/index.html  and click on JDK download button for latest version Step-2: click on Accept License Agreement.  click the Download link that corresponds to the  . exe  for your version of Windows. Step-3: Run the JDK Installer .exe file Start the JDK 11 installer by double-clicking the installer's icon or file name in the download location. Follow the instructions provided by the Installation wizard. once installation is complete click on Close. For setting the permanent path of JDK, you need to follow these steps: 1. Open Advanced System Settings In Windows 10 press Windows key + Pause Key, This will open the System Settings window. Go to  Change settings  and select the  Advanced  tab. Alternatively: Open “Windows search” – you will find it next to the Windows logo open Windows 10 search ...
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What is the use of Thread.sleep() method in Java?

Thread.sleep() : The  java.lang.Thread.sleep(long millis)  method causes the currently executing thread to sleep for the specified number of milliseconds, subject to the precision and accuracy of system timers and schedulers. Declaration Following is the declaration for  java.lang.Thread.sleep()  method public static void sleep(long millis) throws InterruptedException Parameters millis  − This is the length of time to sleep in milliseconds. Return Value This method does not return any value. Exception InterruptedException  − if any thread has interrupted the current thread. The interrupted status of the current thread is cleared when this exception is thrown. Example The following example shows the usage of java.lang.Thread.sleep() method. import java.lang.*; public class ThreadDemo implements Runnable { Thread t; public void run() {  for (int i = 10; i < 13; i++) {  System.out.println(Thread.currentThread().ge...
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How To Enable/Disable Archive Log Mode In Oracle Database?

How To Enable/Disable Archive Log Mode In Oracle Database Step 1: Connect to the database the following command ============================== [oracle@localhost ~]$ sqlplus / as sysdba SQL*Plus: Release 19.0.0.0.0 - Production on Thu Apr 22 14:40:27 2021 Version 19.3.0.0.0 Copyright (c) 1982, 2019, Oracle. All rights reserved. Connected to an idle instance. SQL> startup ORACLE instance started. Total System Global Area 1157627168 bytes Fixed Size 8895776 bytes Variable Size 436207616 bytes Database Buffers 704643072 bytes Redo Buffers 7880704 bytes Database mounted. Database opened. Step 2: To check the ARCHIVELOG mode status, enter the following SQL command: ================================== SQL> archive log list; Database log mode No Archive Mode Automatic archival Disabled Archive destination /u01/app/oracle/archive Oldest online log sequence 22 Current log sequence 24 Step 3:To enable ARCHIVELOG mode status, enter the following SQL commands: =================...
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