单项选择题
Which method must be defined by a class implementing the java.lang.Runnable interface? ()
A. void run()
B. public void run()
C. public void start()
D. void run(int priority)
E. public void run(int priority)
F. public void start(int priority)
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相关考题
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单项选择题
public class Test { public static void main( String[] args) { String foo = args[1]; String bar = args[2]; String baz = args[3]; System.out.println(“baz = “ + baz); } } And the command line invocation: java Test red green blue What is the result?()
A. baz =
B. baz = null
C. baz = blue
D. Compilation fails.
E. An exception is thrown at runtime. -
单项选择题
public class Test { private static int[] x; public static void main(String[] args) { System.out.println(x[0]); } } What is the result?()
A. 0
B. null
C. Compilation fails.
D. A NullPointerException is thrown at runtime.
E. An ArrayIndexOutOfBoundsException is thrown at runtime. -
多项选择题
Whichtwoarevaliddeclarationsofafloat?()
A. float f = 1F;
B. float f = 1.0.;
C. float f = ‘1’;
D. float f = “1”;
E. float f = 1.0d;
