网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
单选题
public class Bootchy {  int bootch;  String snootch;  public Bootchy() {  this(”snootchy”);  System.out.print(”first “);  }  public Bootchy(String snootch) {  this(420, “snootchy”);  System.out.print(”second “);  }  public Bootchy(int bootch, String snootch) {  this.bootch = bootch;  this.snootch = snootch;  System.out.print(”third “);  }  public static void main(String[] args) {  Bootchy b = new Bootchy();  System.out.print(b.snootch +“ “ + b.bootch);  }  }  What is the result?()
A

 snootchy 420 third second first

B

 snootchy 420 first second third

C

 first second third snootchy 420

D

 third second first siiootchy 420

E

 third first second snootchy 420

F

 first second first third snootchy 420


参考答案

参考解析
解析: 暂无解析
更多 “单选题public class Bootchy {  int bootch;  String snootch;  public Bootchy() {  this(”snootchy”);  System.out.print(”first “);  }  public Bootchy(String snootch) {  this(420, “snootchy”);  System.out.print(”second “);  }  public Bootchy(int bootch, String snootch) {  this.bootch = bootch;  this.snootch = snootch;  System.out.print(”third “);  }  public static void main(String[] args) {  Bootchy b = new Bootchy();  System.out.print(b.snootch +“ “ + b.bootch);  }  }  What is the result?()A  snootchy 420 third second firstB  snootchy 420 first second thirdC  first second third snootchy 420D  third second first siiootchy 420E  third first second snootchy 420F  first second first third snootchy 420” 相关考题
考题 能将程序补充完整的选项是( )。class Person{ private int a; public int change(int m){ return m; }}public class Teacher extends Person{ public int b; public static void main(String arg[]) { Person p = new Person(); Teacher t = new Teacher(); int i; ______ }} B.A.i=mB.i=bC. i=p.aD.i=p. change(50)

考题 下列程序段运行的结果为 public class Test{ static void print(String s,int i){ System.out.println("String:"+s+",int:"+i); } static void print(int i,String s){ System.out.println("int:"+i+",String:"+s); } public static void main(String[]args){ print(99,"Int first"); } }A.String:String first,int:11B.int:11,String:Int firstC.String:String first,int99D.int:99,String:Int first

考题 执行下面的程序段,输出结果为______。public class Q{public static void main(String argvr)){int anar[]=new int[5];System.out.println(anar[0]);}}

考题 在如下源代码文件Test.java中, 哪个是正确的类定义?() A.public class test { public int x = 0; public test(int x) { this.x = x; } }B.public class Test{ public int x=0; public Test(int x) { this.x = x; } }C.public class Test extends T1, T2 { public int x = 0; public Test (int x) { this.x = x; } }D.public class

考题 给出下列的不完整的类代码,则哪个语句可以被加到横线处? ( ) class Person{ String name,department; int age; public Person(String n){name=n;} public Person(String n,int s){name=n; age=a;} public Person(String n,String d,int a){ department=d;______ } }A.Person(n,a);B.this(Person(n,a));C.this(n,s);D.this(name,age);

考题 下列程序运行后的输出结果是( )。#include#includeusing namespace std;class Person{public:Person(string n):name(n) { coutprivate:int year,month,day;};class Student:public Person{public:Student(string n,int y,int m,int d,char c):birthday(y,m,d),sex(c),Person(n) { coutA. SB.PSC.DPSD.PDS

考题 下列程序段中,正确的是______。 ①class MvClass { int var = 100; static int getVar() { return var; } } ②public class MyClass { final int date; void MyClass (int d) { date = d; } } ③public class MyMain { public static void main(String args[]) { System.out.println(Myclass1.date); } } class MyClass1 { int data = 10; } ④class IamAbstract { final int f; double d; abstrct void method(); }A.②④B.①③C.②D.以上都不对

考题 public class Something {void doSomething () {private String s = "";int l = s.length();}}有错吗?

考题 interface A{int x = 0;}class B{int x =1;}class C extends B implements A {public void pX(){System.out.println(x);}public static void main(String[] args) {new C().pX();}}

考题 给出下列的不完整的类代码,则下列的哪个语句可以加到横线处? class Person { String name,department; int age; public Person( String n ){ name = n;} public Person( String n,int a ) { name = n;age = a;} public Person( String n,String d,int a ) { _____________ department = d; } }A.Person(n,a);B.this(Person(n,a) );C.this(n,a);D.this(name,age);

考题 1) class Person { 2) public void printValue(int i, int j) {/*…*/ }    3) public void printValue(int i){/*...*/ }    4) } 5) public class Teacher extends Person {    6) public void printValue() {/*...*/ }    7) public void printValue(int i) {/*...*/}    8) public static void main(String args[]){    9) Person t = new Teacher();    10) t.printValue(10);   11) }    12) } Which method will the statement on line 10 call?()    A、 on line 2B、 on line 3C、 on line 6D、 on line 7

考题 Which statements concerning the following code are true?()   class a {   public a() {}   public a(int i) { this(); }   }   class b extends a {   public boolean b(String msg) { return false; }   }   class c extends b  {  private c() { super(); }   public c(String msg) { this(); }   public c(int i) {}   }  A、The code will fail to compile.B、The constructor in a that takes an int as an argument will never be called as a result of constructing an  object of class b or c.C、Class c has three constructors.D、Objects of class b cannot be constructed.E、At most one of the constructors of each class is called as a result of constructing an object of class c.

考题 public class Bootchy {  int bootch;  String snootch;  public Bootchy() {  this(”snootchy”);  System.out.print(”first “);  }  public Bootchy(String snootch) {  this(420, “snootchy”);  System.out.print(”second “);  }  public Bootchy(int bootch, String snootch) {  this.bootch = bootch;  this.snootch = snootch;  System.out.print(”third “);  }  public static void main(String[] args) {  Bootchy b = new Bootchy();  System.out.print(b.snootch +“ “ + b.bootch);  }  }  What is the result?() A、 snootchy 420 third second firstB、 snootchy 420 first second thirdC、 first second third snootchy 420D、 third second first siiootchy 420E、 third first second snootchy 420F、 first second first third snootchy 420

考题 class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()  A、 0B、 1C、 2D、 Compilation fails.

考题 Which two allow the class Thing to be instantiated using new Thing()?A、 public class Thing { }B、 public class Thing { public Thing() {} }C、 public class Thing { public Thing(void) {} }D、 public class Thing { public Thing(String s) {} }E、 public class Thing { public void Thing() {} public Thing(String s) {} }

考题 class Sock {  String size;  String color;  public boolean equals(Object o) {  Sock s = (Sock) o;  return color.equals(s.color);   }  // insert code here  }  哪两个满足 hashCode 的约定?()A、public int hashCode() { return 343; }B、public int hashCode() { return size.hashCode (); }C、public int hashCode() { return color.hashCode (); }D、public int hashCode() { return (int) (Math.random() * 1000);

考题 public abstract class Shape {  private int x;  private int y;  public abstract void draw();  public void setAnchor(int x, int y) {  this.x = x;  this.y = y;  }  }  Which two classes use the Shape class correctly?()A、 public class Circle implements Shape { private int radius; }B、 public abstract class Circle extends Shape { private int radius; }C、 public class Circle extends Shape { private int radius; public void draw(); }D、 public abstract class Circle implements Shape { private int radius; public void draw(); }E、 public class Circle extends Shape { private int radius;public void draw() {/* code here */} }F、 public abstract class Circle implements Shape { private int radius;public void draw() { / code here */ } }

考题 单选题class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()A  0B  1C  2D  Compilation fails.

考题 多选题Which statements concerning the following code are true?()   class a {   public a() {}   public a(int i) { this(); }   }   class b extends a {   public boolean b(String msg) { return false; }   }   class c extends b  {  private c() { super(); }   public c(String msg) { this(); }   public c(int i) {}   }AThe code will fail to compile.BThe constructor in a that takes an int as an argument will never be called as a result of constructing an  object of class b or c.CClass c has three constructors.DObjects of class b cannot be constructed.EAt most one of the constructors of each class is called as a result of constructing an object of class c.

考题 多选题Which are syntactically valid statement at// point x?()     class Person {     private int a;  public int change(int m){  return m;  }     }  public class Teacher extends Person {     public int b;  public static void main(String arg[]){     Person p = new Person();     Teacher t = new Teacher();    int i;  // point x     }    }Ai = m;Bi = b;Ci = p.a;Di = p.change(30);Ei = t.b.

考题 多选题Which two allow the class Thing to be instantiated using new Thing()?Apublic class Thing { }Bpublic class Thing { public Thing() {} }Cpublic class Thing { public Thing(void) {} }Dpublic class Thing { public Thing(String s) {} }Epublic class Thing { public void Thing() {} public Thing(String s) {} }

考题 单选题public class Parent{     public void change(int x){} }  public class Child extends Parent{     //覆盖父类change方法  }  下列哪个声明是正确的覆盖了父类的change方法?()A  protected void change(int x){}B  public void change(int x, int y){}C  public void change(String s){}D  public void change(int x){}

考题 多选题public class NamedCounter {  private final String name;  private int count;  public NamedCounter(String name) { this.name = name; }  public String getName() { return name; }  public void increment() { coount++; }  public int getCount() { return count; } public void reset() { count = 0; } }  Which three changes should be made to adapt this class to be used safely by multiple threads? ()Adeclare reset() using the synchronized keywordBdeclare getName() using the synchronized keywordCdeclare getCount() using the synchronized keywordDdeclare the constructor using the synchronized keywordEdeclare increment() using the synchronized keyword

考题 单选题现有      public class Parentt      public void change (int x){)     )      public class Child extends Parent{     //覆盖父类change方法     }      下列哪个声明是正确的覆盖了父类的change方法?()A   protected void change (int x){}B   public void change(int x,  int y){}C   public void change (int x){}D   public void change (String s){}

考题 单选题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 “”; }  // 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*/}

考题 单选题Given the uncompleted code of a class:     class Person {  String name, department;     int age;  public Person(String n){  name = n; }  public Person(String n, int a){  name = n;  age = a;  }  public Person(String n, String d, int a) {  // doing the same as two arguments version of constructor     // including assignment name=n,age=a    department = d;     }     }  Which expression can be added at the "doing the same as..." part of the constructor?()A  Person(n,a);B  this(Person(n,a));C  this(n,a);D  this(name,age);

考题 多选题public class Car {  private int wheelCount;  private String vin;  public Car(String vin) {  this.vin = vin;  this.wheelCount = 4;  }  public String drive() {  return “zoom-zoom”;  }  public String getInfo() {  return “VIN: “+ vin + “wheels: “+ wheelCount;  }  }  And:  public class MeGo extends Car {  public MeGo(String vin) {  this.wheelCount = 3;  }  }  What two must the programmer do to correct the compilation errors?()Ainsert a call to this() in the Car constructorBinsert a call to this() in the MeGo constructorCinsert a call to super() in the MeGo constructorDinsert a call to super(vin) in the MeGo constructorEchange the wheelCount variable in Car to protectedFchange line 3 in the MeGo class to super.wheelCount = 3;