• 2021-04-14 问题

    将以下哪种方法插入到第6行是不合法的( ) 。 1.public class Test1 { 2. public float aMethod(float a,float b) throws 3. IOException { } 4. } 5.public class Test2 extends Test1{ 6. 7.}

    将以下哪种方法插入到第6行是不合法的( ) 。 1.public class Test1 { 2. public float aMethod(float a,float b) throws 3. IOException { } 4. } 5.public class Test2 extends Test1{ 6. 7.}

  • 2022-06-08 问题

    阅读以下程序class A{protected: int a=0;public: A(){a=1;}};class B:virtual public A{public: B(){a++;}};class C:virtual public A{public: C(){a+=2;}};class D:public B,public C{public: void print(){ cout< A: 0 B: 1 C: 3 D: 4

    阅读以下程序class A{protected: int a=0;public: A(){a=1;}};class B:virtual public A{public: B(){a++;}};class C:virtual public A{public: C(){a+=2;}};class D:public B,public C{public: void print(){ cout< A: 0 B: 1 C: 3 D: 4

  • 2021-04-14 问题

    读代码:1.public class X implements Runnabl...5. }16.}程序执行后的结果是:

    读代码:1.public class X implements Runnabl...5. }16.}程序执行后的结果是:

  • 2022-06-15 问题

    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;}}

    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;}}

  • 2022-06-11 问题

    MAX_LENGTH是int型public成员变量,变量值保持为常量1,用简短语句定义这个变量为( )。 A: public int MAX_LENGTH=1; B: final int MAX_LENGTH=1; C: final public int MAX_LENGTH=1. D: public final int MAX_LENGTH=1;

    MAX_LENGTH是int型public成员变量,变量值保持为常量1,用简短语句定义这个变量为( )。 A: public int MAX_LENGTH=1; B: final int MAX_LENGTH=1; C: final public int MAX_LENGTH=1. D: public final int MAX_LENGTH=1;

  • 2022-06-07 问题

    class Count {public int count;public Count(int c) {count = c;}public Count(){count = 1;}}public class Test {public static void increment(Count c, int times) {c.count++;times++;}public static void main A: myCount.count=4 times=0 B: myCount.count=4 times=1 C: myCount.count=3 times=1 D: myCount.count=3 times=0

    class Count {public int count;public Count(int c) {count = c;}public Count(){count = 1;}}public class Test {public static void increment(Count c, int times) {c.count++;times++;}public static void main A: myCount.count=4 times=0 B: myCount.count=4 times=1 C: myCount.count=3 times=1 D: myCount.count=3 times=0

  • 2022-07-28 问题

    以下选项可替换题目中的//1而不产生编译错误的是( )。 public abstract class MyClass{ public int constInt = 5; //1 public void method(){ } } A: public abstract void method(int a); B: constInt = constInt + 5; C: public int method(); D: public abstract void anotherMethod();

    以下选项可替换题目中的//1而不产生编译错误的是( )。 public abstract class MyClass{ public int constInt = 5; //1 public void method(){ } } A: public abstract void method(int a); B: constInt = constInt + 5; C: public int method(); D: public abstract void anotherMethod();

  • 2022-06-09 问题

    1.Public charity programs means______. A: 公开慈善项目 B: 人民公益节目 C: 公益事业 D: 共同的慈善项目

    1.Public charity programs means______. A: 公开慈善项目 B: 人民公益节目 C: 公益事业 D: 共同的慈善项目

  • 2022-06-07 问题

    class Count { public int count; public Count(int c) { count = c; } public Count() { count = 1; }}public class Test { public static void increment(Count c, int times) { c.count++; times++; } public static void main(String args[]) { Count myCount = new Count(); int times = 0; for (int i = 0; i A: myCount.count=4 times=0 B: myCount.count=3 times=0 C: myCount.count=4 times=1 D: myCount.count=3 times=1

    class Count { public int count; public Count(int c) { count = c; } public Count() { count = 1; }}public class Test { public static void increment(Count c, int times) { c.count++; times++; } public static void main(String args[]) { Count myCount = new Count(); int times = 0; for (int i = 0; i A: myCount.count=4 times=0 B: myCount.count=3 times=0 C: myCount.count=4 times=1 D: myCount.count=3 times=1

  • 2022-06-06 问题

    以下程序的输出结果为: public class test { public static void main(String args[]) { int x=1,y=1,z=1; if (x--==1&&y++==1||z++==1) System.out.println("x="+x+",y="+y+",z="+z); } }

    以下程序的输出结果为: public class test { public static void main(String args[]) { int x=1,y=1,z=1; if (x--==1&&y++==1||z++==1) System.out.println("x="+x+",y="+y+",z="+z); } }

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