Which two cause a compiler error?() A、 float[] = new float(3);B、 float f2[] = new float[];C、 float[] f1 = new float[3];D、 float f3[] = new float[3];E、 float f5[] = { 1.0f, 2.0f, 2.0f };F、 float f4[] = new float[] { 1.0f. 2.0f. 3.0f};

Which two cause a compiler error?() 

  • A、 float[] = new float(3);
  • B、 float f2[] = new float[];
  • C、 float[] f1 = new float[3];
  • D、 float f3[] = new float[3];
  • E、 float f5[] = { 1.0f, 2.0f, 2.0f };
  • F、 float f4[] = new float[] { 1.0f. 2.0f. 3.0f};

相关考题:

请选出创建数组的正确语句。() A.float f[][] = new float[6][6];B.float []f[] = new float[6][6];C.float f[][] = new float[][6];D.float [][]f = new float[6][6];

下面______不是创建数组的正确语句。A.float f[] f[] = new float[5][5];B.float f[][] = new float[5][5];C.float f[][] = new float[][5],D.float [][] f= new float[5][];

Whichtwocauseacompilererror?() A.float[]=newfloat(3);B.floatf2[]=newfloat[];C.float[]f1=newfloat[3];D.floatf3[]=newfloat[3];E.floatf5[]={1.0f,2.0f,2.0f};F.floatf4[]=newfloat[]{1.0f.2.0f.3.0f};

有以下程序 float fl(float n) { return n*n; } float f2(float n) { return 2*n;} main() {float(*p1)(float),(*p2)(float),(*t)(float),y1,Y2; p1=f1; p2=f2; y1=p2(p1(2.O)); t=p1; p1=p2; p2=t; y2=p2(pl(2.0)); printf("%3.0f,%3,Of\n",y1,y2); } 程序运行后的输出结果是A.8,16B.8,8C.16,16D.4,8

有以下程序:include float f1 (float n ){return n*n;}float f2 ( float n){return 2 有以下程序:#include <stdio.h>float f1 (float n ){ return n*n;}float f2 ( float n){ return 2 * n;}main( ){ float ( * p1)(float),( * p2)(float),(*t)(float) ,y1,y2; p1 = f1;p2 = f2; y1 = p2(p1(2.0) ); t =p1;p1 = p2;p2 =t; y2=p2(p1(2.0)); prinff("% 3.0f, %3.Of\n" ,y1,y2);}程序运行后的输出结果是( )。A.8,16B.8,8C.16,16D.4,8

下列程序语句中,不正确的是______。A.maia() { float a,b,c; scanf("%f,%f",a,b); c=add(a,b); …… } int add(float x,float y) {……}B.main() { float a,b,c; scanf("%f,%f",a,b); c=add(a,b); …… } float add(float x,float y) {……}C.float add() maia() { float a,b,c; scanf("%f,%f",a,b); c=add(a,b); …… } float add(float x,float y) {……}D.float add(float x, float y) {……} main() { float a,b,c; scanf("%f,%f",a,b); c=add(a, b); …… }

下列语句中正确的是______。A.byte a222=422;B.Float a64=new Float(1.0);C.float a=1.3eD.Byte al5=12;

以下各组选项中,均能正确定义二维实型数组a的选项是( )A.float a[3][4]; float a[][4]; float a[3][]={{1},{0}};B.float a(3,4); float a[3][4]; float a[][]={{0},{0}};C.float a[3][4] static float a[][4]={{0},{0}};D.float a[3][4]; float a[3][];

float f[][][] = new float[3][][];  float f0 = 1.0f;  float[][] farray = new float[1][1];  What is valid?()  A、 f[0] = f0;B、 f[0] = farray;C、 f[0] = farray[0];D、 f[0] = farray[0][0];

class super {   public float getNum() {return 3.0f;}   }   public class Sub extends Super {   }   Which method, placed at line 6, will cause a compiler error?()A、 Public float getNum() {return 4.0f; }B、 Public void getNum (){}C、 Public void getNum (double d){}D、 Public double getNum (float d) {retrun 4.0f; }

You need to store a floating point number,called Tsquare,in the session scope. Which two code snippetsallow you to retrieve this value?()A、float Tsquare = session.getFloatAttribute("Tsquare");B、float Tsquare = (Float) session.getAttribute("Tsquare");C、float Tsquare = (float) session.getNumericAttribute("Tsquare");D、float Tsquare = ((Float) session.getAttribute.("Tsquare")).floatValue();E、float Tsquare = ((Float) session.getFloatAttribute.("Tsquare")).floatValue;

Which the three are valid declarations of a float?()A、 float foo = -1;B、 float foo = 1.0;C、 float foo = 42el:D、 float foo = 2.02f:E、 float foo = 3.03d:

下列语句中,可以创建数组实例的有()。A、int[] ia = new int [15];B、float fa = new float [20];C、char*+ ca =“Some String”;D、Object oa = new float[20];E、Int ia [][] =(4,5,6)(1,2,3)

哪个语句创建了一个数组实例?()A、int[] ia= new int [15];B、float fa= new float [20];C、char[] ca= “Some String”;D、int ia [][]= {4,5,6} {1,2,3};

下面的方法重载,正确的是()。A、int fun(int a, float b) { } float fun(int a, float b) { }B、float fun(int a, float b) { } float fun(int x, float y) { }C、float fun(float a) { }  float fun(float a, float b) { }D、float fun1(int a, float b) { } float fun2(int a, float b) { }

Which two create an instance of an array?() A、 int ia = new int [15];B、 float fa = new float [20];C、 char ca = “Some String”;D、 Object oa = new float[20];E、 Int ia = (4, 5, 6) (1, 2, 3)

Which three are valid declarations of a float? () A、 Float foo = -1;B、 Float foo = 1.0;C、 Float foo = 42e1;D、 Float foo = 2.02f;E、 Float foo = 3.03d;F、 Float foo = 0x0123;

class BaseClass{  private float x= 1.0f;  protected void setVar (float f) {x = f;}  }  class SubClass extends BaseClass   {  private float x = 2.0f;  //insert code here  }   Which two are valid examples of method overriding?()        A、 Void setVar(float f) {x = f;}B、 Public void setVar(int f) {x = f;}C、 Public void setVar(float f) {x = f;}D、 Public double setVar(float f) {x = f;}E、 Public final void setVar(float f) {x = f;}F、 Protected float setVar() {x=3.0f; return 3.0f; }

1. class super {  2. public float getNum() {return 3.0f;}  3. }  4.    5. public class Sub extends Super { 6.   7. }   Which method, placed at line 6, will cause a compiler error?()  A、  Public float getNum()   {return 4.0f; }B、  Public void getNum ()  { }C、  Public void getNum (double d)   { }D、  Public double getNum (float d) {retrun 4.0f; }

Which two are valid declarations of a float?()A、 float f = 1F;B、 float f = 1.0.;C、 float f = ‘1’;D、 float f = “1”;E、 float f = 1.0d;

多选题class BaseClass{  private float x= 1.0f;  protected void setVar (float f) {x = f;}  } class SubClass extends BaseClass   {  private float x = 2.0f;  //insert code here 16. }   Which two are valid examples of method overriding?()AVoid setVar(float f) {x = f;}BPublic void setVar(int f) {x = f;}CPublic void setVar(float f) {x = f;}DPublic double setVar(float f) {x = f;}EPublic final void setVar(float f) {x = f;}FProtected float setVar() {x=3.0f; return 3.0f; }

单选题class super {   public float getNum() {return 3.0f;}   }   public class Sub extends Super {   }   Which method, placed at line 6, will cause a compiler error?()A Public float getNum() {return 4.0f; }B Public void getNum (){}C Public void getNum (double d){}D Public double getNum (float d) {retrun 4.0f; }

多选题Which two cause a compiler error?()Afloat[] = new float(3);Bfloat f2[] = new float[];Cfloat[] f1 = new float[3];Dfloat f3[] = new float[3];Efloat f5[] = { 1.0f, 2.0f, 2.0f };Ffloat f4[] = new float[] { 1.0f. 2.0f. 3.0f};

多选题Which two create an instance of an array?()Aint ia = new int [15];Bfloat fa = new float [20];Cchar ca = “Some String”;DObject oa = new float[20];EInt ia = (4, 5, 6) (1, 2, 3)

单选题float f[][][] = new float[3][][];  float f0 = 1.0f;  float[][] farray = new float[1][1];  What is valid?()A f[0] = f0;B f[0] = farray;C f[0] = farray[0];D f[0] = farray[0][0];

多选题class BaseClass{  private float x= 1.0f;  protected void setVar (float f) {x = f;}  }  class SubClass extends BaseClass   {  private float x = 2.0f;  //insert code here  }   Which two are valid examples of method overriding?()AVoid setVar(float f) {x = f;}BPublic void setVar(int f) {x = f;}CPublic void setVar(float f) {x = f;}DPublic double setVar(float f) {x = f;}EPublic final void setVar(float f) {x = f;}FProtected float setVar() {x=3.0f; return 3.0f; }

多选题下列语句中,可以创建数组实例的有()。Aint[] ia = new int [15];Bfloat fa = new float [20];Cchar*+ ca =“Some String”;DObject oa = new float[20];EInt ia [][] =(4,5,6)(1,2,3)