单项选择题
What will be written to the standard output when the following program is run?()
public class Q63e3 {
public static void main(String args[]) {
System.out.println(9 ^ 2);
}
}
A.81
B.7
C.11
D.0
E.false
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Given that a static method doIt() in a class Work represents work to be done, what block of code will succeed in starting a new thread that will do the work? CODE BLOCK a: Runnable r = new Runnable() { public void run() { Work.doIt(); } }; Thread t = new Thread(r); t.start(); CODE BLOCK b: Thread t = new Thread() { public void start() { Work.doIt(); } }; t.start(); CODE BLOCK c: Runnable r = new Runnable() { public void run() { Work.doIt(); } }; r.start(); CODE BLOCK d: Thread t = new Thread(new Work()); t.start(); CODE BLOCK e: Runnable t = new Runnable() { public void run() { Work.doIt(); } }; t.run();
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单项选择题
What will be written to the standard output when the following program is run?() public class Qd803 { public static void main(String args[]) { String word = "restructure"; System.out.println(word.substring(2, 3)); } }
A.est
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