Which statements can be inserted at the indicated position in the following code to make the program write 1 on the standard output when run?() public class Q4a39 { int a = 1; int b = 1; int c = 1; class Inner { int a = 2; int get() { int c = 3; // insert statement here return c; } } Q4a39() { Inner i = new Inner(); System.out.println(i.get()); } public static void main(String args[]) { new Q4a39(); } } A、c = b;B、c = this.a;C、c = this.b;D、c = Q4a39.this.a;E、c = c;
Which statements can be inserted at the indicated position in the following code to make the program write 1 on the standard output when run?() public class Q4a39 { int a = 1; int b = 1; int c = 1; class Inner { int a = 2; int get() { int c = 3; // insert statement here return c; } } Q4a39() { Inner i = new Inner(); System.out.println(i.get()); } public static void main(String args[]) { new Q4a39(); } }
- A、c = b;
- B、c = this.a;
- C、c = this.b;
- D、c = Q4a39.this.a;
- E、c = c;
相关考题:
Given:Which method will complete this class?() A.public int compareTo(Object o){/*more code here*/}B.public int compareTo(Score other){/*more code here*/}C.public int compare(Score s1,Score s2){/*more code here*/}D.public int compare(Object o1,Object o2){/*more code here*/}
Given:Which code, inserted at line 15, allows the class Sprite to compile?() A.Foo { public int bar() { return 1; }B.new Foo { public int bar() { return 1; }C.new Foo() { public int bar() { return 1; }D.new class Foo { public int bar() { return 1; }
class A { protected int method1(int a, int b) { return 0; } } Which two are valid in a class that extends class A?() A、 public int method1(int a, int b) { return 0; }B、 private int method1(int a, int b) { return 0; }C、 private int method1(int a, long b) { return 0; }D、 public short method1(int a, int b) { return 0: }E、 static protected int method1(int a, int b) { return 0; }
1. public class Target { 2. private int i = 0; 3. public int addOne() { 4. return ++i; 5. } 6. } And: 1. public class Client { 2. public static void main(String[] args) { 3. System.out.println(new Target().addOne()); 4. } 5. } Which change can you make to Target without affecting Client?() A、 Line 4 of class Target can be changed to return i++;B、 Line 2 of class Target can be changed to private int i = 1;C、 Line 3 of class Target can be changed to private int addOne() {D、 Line 2 of class Target can be changed to private Integer i = 0;
Which lines of code are valid declarations of a native method when occurring within the declaration of the following class?() public class Qf575 { // insert declaration of a native method here } A、native public void setTemperature(int kelvin);B、private native void setTemperature(int kelvin);C、protected int native getTemperature();D、public abstract native void setTemperature(int kelvin);E、native int setTemperature(int kelvin) {}
What will be the result of attempting to compile and run the following code?() public class Q6b0c { public static void main(String args[]) { int i = 4; float f = 4.3; double d = 1.8; int c = 0; if (i == f) c++; if (((int) (f + d)) == ((int) f + (int) d)) c += 2; System.out.println(c); } } A、The code will fail to compile.B、0 will be written to the standard output.C、1 will be written to the standard output.D、2 will be written to the standard output.E、3 will be written to the standard output.
Which line contains a constructor in this class definition?() public class Counter { // (1) int current, step; public Counter(int startValue, int stepValue) { // (2) set(startValue); setStepValue(stepValue); } public int get() { return current; } // (3) public void set(int value) { current = value; } // (4) public void setStepValue(int stepValue) { step = stepValue; } // (5) } A、Code marked with (1) is a constructorB、Code marked with (2) is a constructorC、Code marked with (3) is a constructorD、Code marked with (4) is a constructorE、Code marked with (5) is a Constructor
Given the following code, which method declarations, when inserted at the indicated position, will not cause the program to fail compilation?() public class Qdd1f { public long sum(long a, long b) { return a + b; } // insert new method declaration here } A、public int sum(int a, int b) { return a + b; }B、public int sum(long a, long b) { return 0; }C、abstract int sum();D、private long sum(long a, long b) { return a + b; }E、public long sum(long a, int b) { return a + b; }
10. interface Foo { int bar(); } 11. public class Sprite { 12. public int fubar( Foo foo) { return foo.bar(); } 13. public void testFoo() { 14. fubar( 15. // insert code here 16.); 17. } 18. } Which code, inserted at line 15, allows the class Sprite to compile?() A、 Foo { public int bar() { return 1; } }B、 new Foo { public int bar() { return 1; } }C、 newFoo() { public int bar(){return 1; } }D、 new class Foo { public int bar() { return 1; } }
What will be written to the standard output when the following program is run?() public class Q8499 { public static void main(String args[]) { double d = -2.9; int i = (int) d; i *= (int) Math.ceil(d); i *= (int) Math.abs(d); System.out.println(i); } }A、12B、18C、8D、9E、27
Given the following class, which statements can be inserted at position 1 without causing the code to fail compilation?() public class Q6db8 { int a; int b = 0; static int c; public void m() { int d; int e = 0; // Position 1 } } A、a++;B、b++;C、c++;D、d++;E、e++;
What will be written to the standard output when the following program is run?() class Base { int i; Base() { add(1); } void add(int v) { i += v; } void print() { System.out.println(i); } } class Extension extends Base { Extension() { add(2); } void add(int v) { i += v*2; } } public class Qd073 { public static void main(String args[]) { bogo(new Extension()); } static void bogo(Base b) { b.add(8); b.print(); } } A、9B、18C、20D、21E、22
public class Score implements Comparable { private int wins, losses; public Score(int w, int 1) { wins = w; losses = 1; } public int getWins() { return wins; } public int getLosses() { return losses; } public String toString() { return ““ + wins + “,“ + losses + “”; } // insert code here } Which method will complete this class?() A、 public int compareTo(Object o) {/*mode code here*/}B、 public int compareTo(Score other) {/*more code here*/}C、 public int compare(Score s1,Score s2){/*more code here*/}D、 public int compare(Object o1,Object o2){/*more code here*/}
What will be the result of attempting to compile and run the following program?() public class Q28fd { public static void main(String args[]) { int counter = 0; l1: for (int i=10; i0; i--) { l2: int j = 0; while (j 10) { if (j i) break l2; if (i == j) { counter++; continue l1; } } counter--; } System.out.println(counter); } } A、The program will fail to compile.B、The program will not terminate normally.C、The program will write 10 to the standard output.D、The program will write 0 to the standard output.E、The program will write 9 to the standard output.
Given the following code: public class Person{ int arr[] = new int[10]; public static void main(String a[]) { System.out.println(arr[1]); } } Which statement is correct?() A、 When compilation some error will occur.B、 It is correct when compilation but will cause error when running.C、 The output is zero.D、 The output is null.
public class Parent { int change() {…} } class Child extends Parent { } Which methods can be added into class Child?() A、 public int change(){}B、 int chang(int i){}C、 private int change(){}D、 abstract int chang(){}
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?() A、 public int blipvert(int x) { return 0; }B、 private int blipvert(int x) { return 0; }C、 private int blipvert(long x) { return 0; }D、 protected long blipvert(int x, int y) { return 0; }E、 protected int blipvert(long x) { return 0; }F、 protected long blipvert(long x) { return 0; }G、protected long blipvert(int x) { return 0; }
What will be written to the standard output when the following program is run?() public class Qcb90 { int a; int b; public void f() { a = 0; b = 0; int[] c = { 0 }; g(b, c); System.out.println(a + " " + b + " " + c[0] + " "); } public void g(int b, int[] c) { a = 1; b = 1; c[0] = 1; } public static void main(String args[]) { Qcb90 obj = new Qcb90(); obj.f(); } } A、0 0 0B、0 0 1C、0 1 0D、1 0 0E、1 0 1
多选题Which lines of code are valid declarations of a native method when occurring within the declaration of the following class?() public class Qf575 { // insert declaration of a native method here }Anative public void setTemperature(int kelvin);Bprivate native void setTemperature(int kelvin);Cprotected int native getTemperature();Dpublic abstract native void setTemperature(int kelvin);Enative int setTemperature(int kelvin) {}
多选题Given the following code, which method declarations, when inserted at the indicated position, will not cause the program to fail compilation?() public class Qdd1f { public long sum(long a, long b) { return a + b; } // insert new method declaration here }Apublic int sum(int a, int b) { return a + b; }Bpublic int sum(long a, long b) { return 0; }Cabstract int sum();Dprivate long sum(long a, long b) { return a + b; }Epublic long sum(long a, int b) { return a + b; }
多选题Given the following class, which statements can be inserted at position 1 without causing the code to fail compilation?() public class Q6db8 { int a; int b = 0; static int c; public void m() { int d; int e = 0; // Position 1 } }Aa++;Bb++;Cc++;Dd++;Ee++;
单选题What will be the result of attempting to compile and run the following code?() public class Q6b0c { public static void main(String args[]) { int i = 4; float f = 4.3; double d = 1.8; int c = 0; if (i == f) c++; if (((int) (f + d)) == ((int) f + (int) d)) c += 2; System.out.println(c); } }AThe code will fail to compile.B0 will be written to the standard output.C1 will be written to the standard output.D2 will be written to the standard output.E3 will be written to the standard output.
多选题Which statements can be inserted at the indicated position in the following code to make the program write 1 on the standard output when run?() public class Q4a39 { int a = 1; int b = 1; int c = 1; class Inner { int a = 2; int get() { int c = 3; // insert statement here return c; } } Q4a39() { Inner i = new Inner(); System.out.println(i.get()); } public static void main(String args[]) { new Q4a39(); } }Ac = b;Bc = this.a;Cc = this.b;Dc = Q4a39.this.a;Ec = c;
单选题Given the following code: public class Person{ static int arr[] = new int[10]; public static void main(String a[]) { System.out.println(arr[1];) } } Which statement is correct?()A When compilation some error will occur.B It is correct when compilation but will cause error when running.C The output is zero.D The output is null.
单选题Which line contains a constructor in this class definition?() public class Counter { // (1) int current, step; public Counter(int startValue, int stepValue) { // (2) set(startValue); setStepValue(stepValue); } public int get() { return current; } // (3) public void set(int value) { current = value; } // (4) public void setStepValue(int stepValue) { step = stepValue; } // (5) }ACode marked with (1) is a constructorBCode marked with (2) is a constructorCCode marked with (3) is a constructorDCode marked with (4) is a constructorECode marked with (5) is a Constructor
单选题Given the following code: public class Person{ int arr[] = new int[10]; public static void main(String a[]) { System.out.println(arr[1]); } } Which statement is correct?()A When compilation some error will occur.B It is correct when compilation but will cause error when running.C The output is zero.D The output is null.
单选题What will be the result of attempting to compile and run the following program?() public class Q28fd { public static void main(String args[]) { int counter = 0; l1: for (int i=10; i i) break l2; if (i == j) { counter++; continue l1; } } counter--; } System.out.println(counter); } }AThe program will fail to compile.BThe program will not terminate normally.CThe program will write 10 to the standard output.DThe program will write 0 to the standard output.EThe program will write 9 to the standard output.