4
14
41
以上都不对
第1题:
在下列源代码文件Test.java中, ( )是正确的类定义。
A.public class test{
B.public class Test{ public int x=0;public int x=0; public test (intx) public Test (int x){ {this.x=x; this.x=x;} }} }
C.public class Test extends T1,T2{
D.protected class Test extends T2{ public int=0;public int x=0; public Test(int x){Public Test (int x){ this.x=x;this.x=x: }} }}
第2题:
给定java代码如下所示,在A处新增下列()方法,是对cal方法的重载。public class Test { public void cal(int x, int y, int z) { } //A }
第3题:
public class TestApp{ public static void main(String[] args){ try{ int i = 0; int j = 1 / i; System.out.println(“1”); } catch(Exception e){ System.out.print(“3”); } finally{ System.out.print(“4”); } } } 上述程序运行后的输出是哪项?()
第4题:
public class TestApp{ public int mymethod(){ try{ int i = 0; int j = 1 / i; System.out.println(“1”); }finally{ System.out.print(“4”); } return 1; } } 上述程序运行后的输出是哪项?()
第5题:
现有: class TestApp{ public static void main (String[] args){ for (int i=0; i
第6题:
public class Parent { public int addValue( int a, int b) { int s; s = a+b; return s; } } class Child extends Parent { } Which methods can be added into class Child?()
第7题:
public abstract class Shape { private int x; private int y; public abstract void draw(); public void setAnchor(int x, int y) { this.x = x; this.y = y; } } Which two classes use the Shape class correctly?()
第8题:
4
14
41
以上都不对
第9题:
public class Circle implements Shape { private int radius; }
public abstract class Circle extends Shape { private int radius; }
public class Circle extends Shape { private int radius; public void draw(); }
public abstract class Circle implements Shape { private int radius; public void draw(); }
public class Circle extends Shape { private int radius;public void draw() {/* code here */} }
public abstract class Circle implements Shape { private int radius;public void draw() { / code here */ } }
第10题:
14
编译错误
120
24
第11题:
X
y
j
i
第12题:
x
y
i
j
第13题:
在下列源代码文件Test.java中,哪个选项是正确的类定义? ( )
A.public class test { public int x=0; public test(int x) { this.x=x; } }
B.public class Test { public int x=0; public Test(int x) { this.x=x; } }
C.public class Test extends Ti,T2 { public int x=0; public Test(int x) { this.x=x; } }
D.protected class Test extends T2 { public int x=0; public Test(int x) { this.x=x; } }
第14题:
程序: class TestApp{ public static void main(String[] args){ System.out.println(multiply(2,3,4,5)); } public int multiply(int[] nums){ int result = 1; for(int x :nums) result *= x; return result; } } 程序运行后的输出是哪项?()
第15题:
The following methods are to be published as Web services to be invoked via SOAP messages and validated with a schema: public void myMethod(int x, float y); public void myMethod(int x); public void someOtherMethod(int x, float y); Which WSDL style should be used?()
第16题:
public class TestApp{ public static void main(String[] args){ try{ int i = 0; int j = 1 / i; String myname=null; if(myname.length()>2) System.out.print(“1”); }catch(NullPointerException e){ System.out.print(“2”); } catch(Exception e){ System.out.print(“3”); } } } 上述程序运行后的输出是哪项?()
第17题:
What produces a compiler error?()
第18题:
public class Parent { int change() {…} } class Child extends Parent { } Which methods can be added into class Child?()
第19题:
4
34
43
14
第20题:
RPC/literal
RPC/encoded
Document/encoded
Document/literal
Document/literal wrapped
第21题:
protected void change(int x){}
public void change(int x, int y){}
public void change(String s){}
public void change(int x){}
第22题:
public int compareTo(Object o) {/*mode code here*/}
public int compareTo(Score other) {/*more code here*/}
public int compare(Score s1,Score s2){/*more code here*/}
public int compare(Object o1,Object o2){/*more code here*/}
第23题:
class A { public A(int x) {} }
class A {} class B extends A { B() {} }
class A { A() {} } class B { public B() {} }
class Z { public Z(int) {} } class A extends Z {}
第24题:
0123
012456789
0123456789
012