有一段 Java 应用程序,它的主类名是 Foo,那么保存它的源文件名可以是 A: Foo.java B: foo.java C: Foo.class D: foo.class
有一段 Java 应用程序,它的主类名是 Foo,那么保存它的源文件名可以是 A: Foo.java B: foo.java C: Foo.class D: foo.class
读代码: public class Test { public static void main (String args[]) { class Foo { public int i = 3; } Object o = (Object) new Foo(); Foo foo = (Foo)o; System.out.println(foo.i); } } 结果是:
读代码: public class Test { public static void main (String args[]) { class Foo { public int i = 3; } Object o = (Object) new Foo(); Foo foo = (Foo)o; System.out.println(foo.i); } } 结果是:
下面哪一个类可以访问foo包中的所有变量?()package foo;class a{int c}class b{private int d}class c{public int e} A: class a B: class b C: class c D: 都不能
下面哪一个类可以访问foo包中的所有变量?()package foo;class a{int c}class b{private int d}class c{public int e} A: class a B: class b C: class c D: 都不能
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;}}
Which two methods, inserted individually, correctly complete the Three class?() A: public void foo(){ } B: public int foo(){return 3;} C: public Two foo(){return this;} D: public One foo(){return this;} E: public Object foo(){return this;}
Which two methods, inserted individually, correctly complete the Three class?() A: public void foo(){ } B: public int foo(){return 3;} C: public Two foo(){return this;} D: public One foo(){return this;} E: public Object foo(){return this;}
关于下列代码说法正确的是( ) public class Foo{ public int add(int a,int b){ return a+b; } public static void main(String[] args){ Foo foo = null; System.out.println(foo.add(10,20)); } }
关于下列代码说法正确的是( ) public class Foo{ public int add(int a,int b){ return a+b; } public static void main(String[] args){ Foo foo = null; System.out.println(foo.add(10,20)); } }
智慧职教: public class Foo{ int i; static String s; void imethod(){ } static void smethod(){ }}已知f是Foo的一个实例,下面语句是否正确?Foo.imethod()
智慧职教: public class Foo{ int i; static String s; void imethod(){ } static void smethod(){ }}已知f是Foo的一个实例,下面语句是否正确?Foo.imethod()
给定:class Foo { Foo() { /* more code here */ }static void alpha() { /* more code here */ } void beta() { /* more code here */ } } 下面选项说法错误的是:( ) A: Foo() 中可以直接调用beta(). B: Foo() 中可以直接调用alpha(). C: beta() 中可以直接调用alpha(). D: alpha()中可以直接调用beta().
给定:class Foo { Foo() { /* more code here */ }static void alpha() { /* more code here */ } void beta() { /* more code here */ } } 下面选项说法错误的是:( ) A: Foo() 中可以直接调用beta(). B: Foo() 中可以直接调用alpha(). C: beta() 中可以直接调用alpha(). D: alpha()中可以直接调用beta().
读代码:public class foo {static String s;public static void main (String[]args) {System.out.println (“s=” + s);}}结果是
读代码:public class foo {static String s;public static void main (String[]args) {System.out.println (“s=” + s);}}结果是
下面哪个程序是语法正确的? A: foo::IO() foo=do line=getLine printline B: foo::IO() foo=do letline=getLine printline C: foo::IO() foo=do letline-getLine printline D: foo::IO() foo=do line-getLine printline
下面哪个程序是语法正确的? A: foo::IO() foo=do line=getLine printline B: foo::IO() foo=do letline=getLine printline C: foo::IO() foo=do letline-getLine printline D: foo::IO() foo=do line-getLine printline