Click the Exhibit button. What is the result?()
A.go in Goban go in Sente go in Sente B.go in Sente go in Sente go in Goban C.go in Sente go in Goban go in Goban D.go in Goban go in Goban go in Sente
单项选择题Given: Which statement is true?()
A.The code will compile without changes. B.The code will compile if public Tree() { Plant(); } is added to the Tree class. C.The code will compile if public Plant() { Tree(); } is added to the Plant class. D.The code will compile if public Plant() { this("fern"); } is added to the Plant class. E.The code will compile if public Plant() { Plant("fern"); } is added to the Plant class.
多项选择题Whichtwocodefragmentscorrectlycreateandinitializeastaticarrayofintelements?()
A.static final int[] a = { 100,200 }; B.static final int[] a; static { a=new int[2]; a[0]=100; a[1]=200; } C.static final int[] a = new int[2]{ 100,200 }; D.static final int[] a; static void init() { a = new int[3]; a[0]=100; a[1]=200; }
单项选择题Click the Exhibit button. What is the result?()
A.Line 26 prints "a" to System.out. B.Line 26 prints "b" to System.out. C.An exception is thrown at line 26 at runtime. D.Compilation of class A will fail due to an error in line 6.
多项选择题Given. Which two statements are true?()
A.Foo.beta() is a valid invocation of beta(). B.Foo.alpha() is a valid invocation of alpha(). C.Method beta() can directly call method alpha(). D.Method alpha() can directly call method beta().
单项选择题Given: What is the result when the programmer attempts to compile the code and run it with the command java Converter 12?()
A.It is true that j==i. B.It is false that j==i. C.An exception is thrown at runtime. D.Compilation fails because of an error in line 13.