Object Oriented C++

 

Install Eclipse

Create New Project

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Java Eclipse Hello World Program

JButton btnNewButton = new JButton(“Show message”);

btnNewButton.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

JOptionPane.showMessageDialog(null,“hello world…. “);

}

 

How to Fix the Package javax.swing is Not Accessible Error – Java Swing Not Working

BHMATA:
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– Right click on project namne
– properties
– Java Build Path
– Libraries
– Model Path
– Add Library
– JRE System Library
– Execution enviropment
– Finish
– Apply
– Apply and Close
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Delete module-info.java file