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现有: 1. class Synapse { 2. protected int gap() { return 7; } 3. } 4. 5. class Creb extends Synapse { 6. // insert code here 7. } 分别插入到第 6 行,哪三行可以编译?()
- A、 int gap() { return 7; }
- B、 public int gap() { return 7; }
- C、 private int gap(int x) { return 7; }
- D、 protected Creb gap() { return this; }
- E、 public int gap() { return Integer.getInteger ("42"); }
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更多 “ 现有: 1. class Synapse { 2. protected int gap() { return 7; } 3. } 4. 5. class Creb extends Synapse { 6. // insert code here 7. } 分别插入到第 6 行,哪三行可以编译?()A、 int gap() { return 7; }B、 public int gap() { return 7; }C、 private int gap(int x) { return 7; }D、 protected Creb gap() { return this; }E、 public int gap() { return Integer.getInteger ("42"); }” 相关考题
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多选题现有: 1. class HorseRadish { 2. // insert code here 3. protected HorseRadish(int x) { 4. System.out.println("bok choy"); 5. } 6. } 7. class Wasabi extends HorseRadish { 8. public static void main(String [] args) { 9. Wasabi w = new Wasabi(); 10. } 11. } 分别插入到第 2 行,哪两项允许代码编译并产生"bok choy" 输出结果?()A// just a commentBprotected HorseRadish() { }Cprotected HorseRadish() { this(42);}Dprotected HorseRadish() { new HorseRadish (42);}
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单选题现有: 1. abstract class Color2 { 2. //insert code here 3. } 4. 5. public class Blue2 extends Color2 { 6.public String getRGB() { return "blue"; } 7. } 和4个声明: public abstract String getRGB(); abstract String getRGB(); private abstract String getRGB(); protected abstract String getRGB(); 分别插入到第2行,有多少行可以编译?()A
0B
1C
2D
3
考题
多选题1. class Synapse { 2. protected int gap() { return 7; } 3. } 4. 5. class Creb extends Synapse { 6. // insert code here 7. } 分别插入到第 6 行,哪三行可以编译?()Aint gap() { return 7; }Bpublic int gap() { return 7; }Cprivate int gap(int x) { return 7; }Dprotected Creb gap() { return this; }Epublic int gap() { return Integer.getInteger (42); }
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多选题1. class HorseRadish { 2. // insert code here 3. protected HorseRadish(int x) { 4. System.out.println("bok choy"); 5. } 6. } 7. class Wasabi extends HorseRadish { 8. public static void main(String [] args) { 9. Wasabi w = new Wasabi(); 10. } 11. } 分别插入到第 2 行,哪两项允许代码编译并产生"bok choy" 输出结果?()A// just a commentBprotected HorseRadish() { }Cprotected HorseRadish() { this(42);}Dprotected HorseRadish() { new HorseRadish (42);}
考题
多选题1. public class Blip { 2. protected int blipvert(int x) { return 0; } 3. } 4. class Vert extends Blip { 5. // insert code here 6. } Which five methods, inserted independently at line 5, will compile?()Apublic int blipvert(int x) { return 0; }Bprivate int blipvert(int x) { return 0; }Cprivate int blipvert(long x) { return 0; }Dprotected long blipvert(int x, int y) { return 0; }Eprotected int blipvert(long x) { return 0; }Fprotected long blipvert(long x) { return 0; }Gprotected long blipvert(int x) { return 0; }
考题
单选题现有: 1. interface Altitude { 2. //insert code here 3. } 和4个声明: int HIGH = 7; public int HIGH = 7; abstract int HIGH = 7; interface int HIGH = 7; 分别插入到第2行,有多少行可以编译?()A
0B
1C
2D
3E
4
考题
多选题现有: 1. class Synapse { 2. protected int gap() { return 7; } 3. } 4. 5. class Creb extends Synapse { 6. // insert code here 7. } 分别插入到第 6 行,哪三行可以编译?()Aint gap() { return 7; }Bpublic int gap() { return 7; }Cprivate int gap(int x) { return 7; }Dprotected Creb gap() { return this; }Epublic int gap() { return Integer.getInteger (42); }
考题
多选题1. class BaseClass { 2. private float x = 1.of; 3. protected float getVar() { return x; } 4. } 5. class SubClass extends BaseClass { 6. private float x = 2.Of; 7. // insert code here 8. } Which two are valid examples of method overriding when inserted at line 7?()Afloat getVar() { return x; }Bpublic float getVar() { return x; }Cpublic double getVar() { return x; }Dprotected float getVar() { return x; }Epublic float getVar(float f) { return f; }
考题
单选题现有: 1. abstract class Color { 2.protected abstract String getRGB(); 3. } 4. 5. public class Blue extends Color { 6. //insert code here 7. } 和四个声明: public String getRGB() { return "blue"; } String getRGB() { return "blue"; ) private String getRGB() { return "blue"; } protected String getRGB() { return "blue"; ) 分别插入到第6行,有几个可以通过编译?()A
0B
1C
2D
3
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