Question 7 What is the layout manager that has five regions? O gridbag O flow O border O grid Question 8 setLayout(null) ensures absolute positioning O True False

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Question 7
What is the layout manager that has five regions?
O gridbag
flow
O border
O grid
Question 8
setlayout(null) ensures absolute positioning
True
O False
Transcribed Image Text:Question 7 What is the layout manager that has five regions? O gridbag flow O border O grid Question 8 setlayout(null) ensures absolute positioning True O False
Refer to the class shown below which compiles with no errors and runs with no exceptions but does
not produce correct results. Answer the questions which follow.
01
02
Assume correct import and package statements
*/
03
04
05
public class HelloGoodBye extends JPanel {
06
/** A button to say hello. */
private final JButton myHelloButton;
07
08
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/** A button to say goodbye. */
private final JButton myGoodbyeButton;
10
11
12
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/** A label to display the message. */
private final JLabel myMessageLabel;
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/**
17
Initializes all of the fields.
18
public HelloGoodBye() {
super();
myHelloButton = new JButton("Hello");
myGoodbyeButton = new JButton("Goodbye");
myMessagelabel = new JLabel("Message");
}
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/**
Lay out the components and makes this frame visible.
*/
public void setUpComponents() {
setlayout(new Borderlayout());
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final JPanel labelPanel = new JPanel();
33
labelPanel.add(myMessageLabel);
add(labelPanel, Borderlayout.SOUTH);
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final JPanel buttonPanel = new JPanel();
buttonPanel.add(myHelloButton);
buttonPanel.add(myGoodbyeButton);
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add(buttonPanel, Borderlayout.NORTH);
}
41
42
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44
}
Transcribed Image Text:Refer to the class shown below which compiles with no errors and runs with no exceptions but does not produce correct results. Answer the questions which follow. 01 02 Assume correct import and package statements */ 03 04 05 public class HelloGoodBye extends JPanel { 06 /** A button to say hello. */ private final JButton myHelloButton; 07 08 09 /** A button to say goodbye. */ private final JButton myGoodbyeButton; 10 11 12 13 /** A label to display the message. */ private final JLabel myMessageLabel; 14 15 16 /** 17 Initializes all of the fields. 18 public HelloGoodBye() { super(); myHelloButton = new JButton("Hello"); myGoodbyeButton = new JButton("Goodbye"); myMessagelabel = new JLabel("Message"); } 19 20 21 22 23 24 25 /** Lay out the components and makes this frame visible. */ public void setUpComponents() { setlayout(new Borderlayout()); 26 27 28 29 30 31 32 final JPanel labelPanel = new JPanel(); 33 labelPanel.add(myMessageLabel); add(labelPanel, Borderlayout.SOUTH); 34 35 final JPanel buttonPanel = new JPanel(); buttonPanel.add(myHelloButton); buttonPanel.add(myGoodbyeButton); 36 37 38 39 40 add(buttonPanel, Borderlayout.NORTH); } 41 42 43 44 }
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