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;
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;
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][];
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); …… }
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?() A、 float getVar() { return x; }B、 public float getVar() { return x; }C、 public double getVar() { return x; }D、 protected float getVar() { return x; }E、 public float getVar(float f) { return f; }
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];
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:
下列选项中,能有效地描述浮点数的有()。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;
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 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};
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; }
Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map, which two are valid invocations of function foo?()A、 ${func(1)}B、 ${foo:func(4)}C、 ${func:foo(2)}D、 ${foo(5):func}E、 ${func:foo(“easy”)}F、 ${func:foo(“3”).name}
public class Foo { private int val; public foo(int v) (val = v;) } public static void main (String [] args) { Foo a = new Foo (10); Foo b = new Foo (10); Foo c = a; int d = 10; double e = 10.0; } Which three logical expression evaluate to true?()A、 (a ==c)B、 (d ==e)C、 (b ==d)D、 (a ==b)E、 (b ==c)F、 (d ==10.0)
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Which two are valid declarations of a float?()Afloat f = 1F;Bfloat f = 1.0.;Cfloat f = ‘1’;Dfloat f = “1”;Efloat f = 1.0d;
多选题下列选项中,能有效地描述浮点数的有()。AFloat foo = -1;BFloat foo = 1.0;CFloat foo = 42e1;DFloat foo = 2.02f;EFloat foo = 3.03d;FFloat foo = 0x0123;
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; }
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; }
多选题Which three are valid declarations of a float? ()AFloat foo = -1;BFloat foo = 1.0;CFloat foo = 42e1;DFloat foo = 2.02f;EFloat foo = 3.03d;FFloat foo = 0x0123;
多选题Which the three are valid declarations of a float?()Afloat foo = -1;Bfloat foo = 1.0;Cfloat foo = 42el:Dfloat foo = 2.02f:Efloat foo = 3.03d:
单选题下面的方法重载,正确的是()。Aint fun(int a, float b) { } float fun(int a, float b) { }Bfloat fun(int a, float b) { } float fun(int x, float y) { }Cfloat fun(float a) { } float fun(float a, float b) { }Dfloat fun1(int a, float b) { } float fun2(int a, float b) { }
多选题Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map,which two are valid invocations of function foo?()A${func(1)}B${foo:func(4)}C${func:foo(2)}D${foo(5):func}E${func:foo(easy)}F${func:foo(3).name}
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; }