Restore

Labs/Lab10/Lab10_2230026071/Question4/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

Labs/Lab10/Lab10_2230026071/Question4/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question4</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

Labs/Lab10/Lab10_2230026071/Question4/.settings/org.eclipse.core.resources.prefs

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+eclipse.preferences.version=1
+encoding/<project>=UTF-8

Labs/Lab10/Lab10_2230026071/Question4/src/MyFrame.java

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+import java.awt.BorderLayout;
+import java.awt.FlowLayout;
+import java.awt.GridLayout;
+
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JComboBox;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JRadioButton;
+import javax.swing.JTextField;
+
+public class MyFrame extends JFrame{
+	//constructor
+	public MyFrame() {
+		this.setTitle("MyFrame Title");
+		this.setSize(400, 300);
+		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		this.setLocationRelativeTo(null);
+		
+		//JButton b1 = new JButton("b1");
+		this.add(new JButton("b1"), BorderLayout.LINE_START);
+		//JButton b2 = new JButton("b2");
+		this.add(new JButton("b2"), BorderLayout.LINE_END);
+		
+		/*
+		GridLayout g1 = new GridLayout(5, 5);
+		this.setLayout(g1);
+		*/
+		//the program presents in 4*2 layout
+		//the program did not use the specified  rows and columns, because the lack numbers of components
+		//the layout did not changed as the components are already parallel-aligned
+		//if set number of rows = 0, it would auto ask new lines w.r.t. number of columns
+		
+		BorderLayout bl = new BorderLayout();
+		this.setLayout(bl);
+		
+		JLabel l = new JLabel("Enter your name: ");
+		this.add(l, BorderLayout.LINE_START);
+		JTextField tx = new JTextField("Type Text Here");
+		this.add(tx, BorderLayout.CENTER);
+		JCheckBox cb = new JCheckBox("I agree");
+		this.add(cb, BorderLayout.LINE_END);
+		JRadioButton rb = new JRadioButton("Yes");
+		this.add(rb, BorderLayout.AFTER_LINE_ENDS);
+		JComboBox<String> cb1 = new JComboBox<String>(new String[]{"Red", "Green", "Blue"});
+		this.add(cb1, BorderLayout.CENTER);
+		JComboBox<Integer> cb2 = new JComboBox<Integer>(new Integer[]{2, 7, -3, 24});
+		this.add(cb2, BorderLayout.LINE_END);
+		//when add more than one component to one of the five areas of the frame, overlap would occurs
+		//when one area does not contain any components, this area would vanished and replaced by the former component
+		
+		this.setVisible(true);
+	}
+	
+}

Labs/Lab10/Lab10_2230026071/Question4/src/Start.java

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+
+public class Start {
+
+	public static void main(String[] args) {
+		javax.swing.SwingUtilities.invokeLater(new Runnable() {
+			@Override
+			public void run() {
+				new MyFrame();
+			}
+		});
+	}
+
+}