Swing and Database Connectivity<\/p>\n
Time Remaining:<\/p>\n
Question 1.1. (TCOs 1\u20138) Which of the following statements is false? (Points : 3)
\nYou can disable editing on a text area.
\nYou can specify the number of columns in a text area.
\nYou can create a text field with a specified text area.
\nYou can specify a horizontal text alignment in a text area.<\/p>\n
Question 2.2. (TCOs 1\u20138) _____ can be used to enter or display a string. (Points : 3)
\nA button
\nA check box
\nA text field
\nA label
\nA radio button<\/p>\n
Question 3.3. (TCOs 1\u20138) The method _____ gets the contents of the text field jtf. (Points : 3)
\njtf.findString()
\njtf.getText(s)
\njtf.getString()
\njtf.getText()<\/p>\n
Question 4.4. (TCOs 1\u20138) Analyze the following code.
\nimport javax.swing.*;
\nimport javax.swing.border.*;
\nimport java.awt.*;
\npublic class Test extends JFrame {
\npublic Test() {
\nBorder border = new TitledBorder(“My button”);
\nJButton jbt1 = new JButton(“OK”);
\nJButton jbt2 = new JButton(“Cancel”);
\njbt1.setBorder(border);
\njbt2.setBorder(border);
\nadd(jbt1, BorderLayout.NORTH);
\nadd(jbt2, BorderLayout.SOUTH);
\n}
\npublic static void main(String[ ] args) {
\nJFrame frame = new Test();
\nframe.setSize(200, 100);
\nframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
\nframe.setVisible(true);
\n}
\n} (Points : 3)
\nTwo buttons displayed with the same border.
\nThe program has a compile error because you assign new TitledBorder(“My button”) to a variable of the border type.
\nThe program has a runtime error because you cannot set a border on a button.
\nTwo buttons displayed, but only one button has the border.<\/p>\n
Question 5.5. (TCOs 1\u20138) _____ allows selections of multiple contiguous items without restrictions. (Points : 3)
\nSingle selection
\nSingle-interval selection
\nMultiple selection
\nMultiple-interval selection<\/p>\n
Question 6.6. (TCOs 1\u20138) To retrieve all courses with more than 3 credit hours, you write
\nselect * from Course
\nwhere numOfCredits > 3;
\nIs this statement correct? (Points : 3)
\nYes
\nNo<\/p>\n
Question 7.7. (TCOs 1\u20138) What is the return value from
\nstmt.executeUpdate(“insert into T values (100, ‘Smith’)”) (Points : 3)
\nan int value indicating how many rows are effected from the invocation.
\nan object that contains the status of the execution.
\na value indicating whether the SQL statement has been executed successfully.
\nvoid.<\/p>\n
Question 8.8. (TCOs 1\u20138) Which of the following statements is false? (Points : 3)
\nPreparedStatement is for SQL query statements only. You cannot create a PreparedStatement for SQL update statements.
\nThe parameters in a prepared statement are denoted using the ? sign.
\nPreparedStatement is efficient for repeated executions.
\nPreparedStatement is a subinterface of Statement.<\/p>\n
Question 9.9. (TCOs 1\u20138) What information may not be obtained from a DatabaseMetaData object? (Points : 3)
\nMaximum number of connections to the database
\nODBC driver name and version
\nMaximum table name length and maximum number of columns in a table
\nDatabase URL and product name<\/p>\n
Question 10.10. (TCOs 1\u20138) The method _____ adds a text area jta to a scrollpane jScrollPane. (Points : 3)
\njScrollPane.insert(jta)
\njScrollPane.add(jta)
\njScrollPane.addItem(jta)
\nNone of them<\/p>\n","protected":false},"excerpt":{"rendered":"
Swing and Database Connectivity Time Remaining: Question 1.1. (TCOs 1\u20138) Which of the following statements is false? (Points : 3) You can disable editing on a text area. You can specify the number of columns in a text area. You Read More …<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-240197","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/posts\/240197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/comments?post=240197"}],"version-history":[{"count":0,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/posts\/240197\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/media?parent=240197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/categories?post=240197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.benedictsol.com\/blogs\/wp-json\/wp\/v2\/tags?post=240197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}