简述foo()和@foo()之间有什么区别?
简述foo()和@foo()之间有什么区别?
相关考题:
GivenanELfunctionfoo,innamespacefunc,thatrequiresalongasaparameterandreturnsaMap,whichtwoarevalidinvocationsoffunctionfoo?() A.${func(1)}B.${foo:func(4)}C.${func:foo(2)}D.${foo(5):func}E.${func:foo(“easy”)}F.${func:foo(“3”).name}
GivenanELfunctionfoo,innamespacefunc,thatrequiresalongasaparameterandreturnsaMap,which twoarevalidinvocationsoffunctionfoo?() A.${func(1)}B.${foo:func(4)}C.${func:foo(2)}D.${foo(5):func}E.${func:foo(easy)}F.${func:foo(3).name}
Assume a tag handler extends TagSupport. Which is used within the tag handler to get an attribute “foo” that is in the application scope?()A、 pageContext.getAttribute(“foo”);B、 getPageContext().getAttribute(“foo”);C、 pageContext.getApplicationScope(“foo”);D、 pageContext.getAttribute(“foo”,pageContext.APPLICATION_SCOPE).getAttribute(“foo”);E、 getPageContext().getScope(pageContext.APPLICATION_SCOPE).getAttribute(“foo”);
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;
class Foo { private int x; publicFoo(intx) {this.x=x; } public void setX( int x) { this.x = x; } public int getX() { return x; } } public class Gamma { static Foo fooBar( Foo foo) { foo = new Foo( 100); return foo; } public static void main( String[] args) { Foo foo = new Foo( 300); System.out.print( foo.getX() + “-“); Foo fooFoo = fooBar( foo); System.out.print( foo.getX() + “-“); System.out.print( fooFoo.getX() + “-“); foo = fooBar( fooFoo); System.out.print( foo.getX() + “-“); System.out.prmt( fooFoo.getX()); } } What is the output of this program?()A、 300-100-100-100-100B、 300-300-100-100-100C、 300-300-300-100-100D、 300-300-300-300-100
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;
Javascript中,foo对象有att属性,那么以下获取att属性值的表达式哪个是错误的?()A、foo.attB、foo["att"]C、foo{"att"}D、foo["a"+"t"+"t"]
foo对象有att属性,那么获取att属性的值,以下哪些做法是可以的?()A、foo.attB、foo(“att”)C、foo[“att”]D、foo{“att”}E、foo[“a”+“t”+“t”]
console.log(foo);varfoo="foo!";console.log(foo);执行上面代码,控制台会输出()。A、undefined undefinedB、foo! undefinedC、undefined foo!D、foo! fool!
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、 ${func:foo(“3”).name}
String foo = “blue”; Boolean[]bar = new Boolean [1]; if (bar[0]) { foo = “green”; } What is the result? () A、 Foo has the value of “”B、 Foo has the value of null.C、 Foo has the value of “blue”D、 Foo has the value of “green”E、 An exception is thrown.F、 The code will not compile.
多选题下列选项中,能有效地描述浮点数的有()。AFloat foo = -1;BFloat foo = 1.0;CFloat foo = 42e1;DFloat foo = 2.02f;EFloat foo = 3.03d;FFloat foo = 0x0123;
单选题Assume a tag handler extends TagSupport. Which is used within the tag handler to get an attribute “foo” that is in the application scope?()A pageContext.getAttribute(“foo”);B getPageContext().getAttribute(“foo”);C pageContext.getApplicationScope(“foo”);D pageContext.getAttribute(“foo”,pageContext.APPLICATION_SCOPE).getAttribute(“foo”);E getPageContext().getScope(pageContext.APPLICATION_SCOPE).getAttribute(“foo”);
单选题String foo = “blue”; Boolean[]bar = new Boolean [1]; if (bar[0]) { foo = “green”; } What is the result? ()A Foo has the value of “”B Foo has the value of null.C Foo has the value of “blue”D Foo has the value of “green”E An exception is thrown.F The code will not compile.
单选题String foo = “blue”; Booleanbar = new Boolean [1]; if (bar[0]) { foo = “green”; } What is the result?()A Foo has the value of “”B Foo has the value of null.C Foo has the value of “blue”D Foo has the value of “green”E An exception is thrown.F The code will not compile.
多选题Which three are valid declarations of a float? ()AFloat foo = -1;BFloat foo = 1.0;CFloat foo = 42e1;DFloat foo = 2.02f;EFloat foo = 3.03d;FFloat foo = 0x0123;
多选题Which the three are valid declarations of a float?()Afloat foo = -1;Bfloat foo = 1.0;Cfloat foo = 42el:Dfloat foo = 2.02f:Efloat foo = 3.03d:
多选题Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map,which two are valid invocations of function foo?()A${func(1)}B${foo:func(4)}C${func:foo(2)}D${foo(5):func}E${func:foo(easy)}F${func:foo(3).name}
( 难度:中等)Javascript 中, foo 对象有att 属性,那么以下获取att 属性值的表达式哪个是错误的?()A.foo.attB.foo["att"]C.foo{"att"}D.foo["a"+"t"+"t"]
( 难度:中等)foo对象有att属性,那么获取att属性的值,以下哪些做法是可以的A.foo.attB.foo(“att”)C.foo[“att”]D.foo{“att”}E.foo[“a”+”t”+”t”]