网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
填空题
3. string foo = “ABCDE”;  4. foo.substring(3);   5. foo.concat(“XYZ”);   6.   Type the value of foo at line 6.()

参考答案

参考解析
解析: 暂无解析
更多 “填空题3. string foo = “ABCDE”;  4. foo.substring(3);   5. foo.concat(“XYZ”);   6.   Type the value of foo at line 6.()” 相关考题
考题 GiventheJSPcode:%request.setAttribute(foo,bar);%andtheClassictaghandlercode:5.publicintdoStartTag()throwsJspException{6.//insertcodehere7.//returnint8.}Assumetherearenootherfooattributesinthewebapplication.WhichinvocationonthepageContextobject,insertedatline6,assignsbartothevariablex?()A.Stringx=(String)pageContext.getAttribute(foo)B.Stringx=(String)pageContext.getRequestScope(foo)C.ItisNOTpossibletoaccessthepageContextobjectfromwithindoStartTagD.Stringx=(String)pageContext.getRequest().getAttribute(foo)E.Stringx=(String)pageContext.getAttribute(foo,PageContext.ANY_SCOPE)

考题 public class test(  public static void main(string[]args){  string foo = args [1];  string foo = args [2];  string foo = args [3];  }  )  And command line invocation: Java Test red green blue   What is the result?()  A、 Baz has the value of “”B、 Baz has the value of nullC、 Baz has the value of “red”D、 Baz has the value of “blue”E、 Bax has the value of “green”F、 The program throws an exception.

考题 1. public class Test {   2. public static void main (String args) {   3. unsigned byte b = 0;   4. b--;   5.   6. }   7. }   What is the value of b at line 5?()  A、 -1B、 255C、 127D、 Compilation will fail.E、 Compilation will succeed but the program will throw an exception at line 4.

考题 int index = 1;   String test = new String;   String foo = test[index];  What is the result?()A、 Foo has the value “”B、 Foo has the value nullC、 An exception is thrownD、 The code will not compile

考题 Given: 6.% int[] nums = {42, 420, 4200}; 7.request.setAttribute("foo", nums); % Which two successfully translate and result in a value of true?()A、${true or false}B、${requestScope[foo][0]  500}C、${requestScope[’foo’][1] = 420}D、${(requestScope[’foo’][0] lt 50)  (3 gt 2)}

考题 1. public class Test { 2. public static String output =””; 3.  4. public static void foo(int i) { 5. try { 6. if(i==1) { 7. throw new Exception(); 8. } 9. output += “1”; 10. } 11. catch(Exception e) { 12. output += “2”; 13. return; 14. } 15. finally { 16. output += “3”;17. } 18. output += “4”; 19. } 20.  21. public static void main(String args[]) { 22. foo(0); 23. foo(1); 24.  25. }26. } What is the value of the variable output at line 23?()

考题 5. String foo = “base”;   6. foo.substring(0,3);   7. foo.concat(“ket”)  8.   Type the value of foo at line 8.()

考题 1. interface foo {  2. int k = 0;  3. } 4.    5. public class test implements Foo (  6. public static void main(String args[]) (  7. int i;  8. Test test = new test ();  9. i= test.k;  10.i= Test.k;  11.i= Foo.k;  12.)  13.)  14.        What is the result?()  A、 Compilation succeeds.B、 An error at line 2 causes compilation to fail.C、 An error at line 9 causes compilation to fail.D、 An error at line 10 causes compilation to fail.E、 An error at line 11 causes compilation to fail.

考题 1. class SuperFoo {  2. SuperFoo doStuff(int x) {  3. return new SuperFoo(); 4. }  5. }  6.  7. class Foo extends SuperFoo {  8. //insert code here  9. }   下面哪三项分别插入到第8行,可以编译?()A、int doStuff() { return 42; }B、int doStuff(int x) { return 42; }C、Foo doStuff(int x) { return new Foo(); }D、SuperFoo doStuff(int x) { return new Foo(); }

考题 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.

考题 2. public class Foo implements Runnable (  3. public void run (Thread t) {  4. system.out.printIn(“Running.”);  5. }  6. public static void main (String[] args)  {  7. new thread (new Foo()).start(); 8. )  9. )   What is the result?()      A、 An exception is thrown.B、 The program exists without printing anything.C、 An error at line 1 causes compilation to fail.D、 An error at line 6 causes the compilation to fail.E、 “Running” is printed and the program exits.

考题 Given the JSP code: % request.setAttribute("foo", "bar"); %and the Classic tag handler code: 5. public int doStartTag() throws JspException { 6. // insert code here 7. // return int 8. } Assume there are no other "foo" attributes in the web application. Which invocation on the pageContextobject,inserted at line 6,assigns "bar" to the variable x?()A、String x = (String) pageContext.getAttribute("foo")B、String x = (String) pageContext.getRequestScope("foo")C、It is NOT possible to access the pageContext object from within doStartTagD、String x = (String) pageContext.getRequest().getAttribute("foo")E、String x = (String) pageContext.getAttribute("foo", PageContext.ANY_SCOPE)

考题 3. string foo = “ABCDE”;  4. foo.substring(3);   5. foo.concat(“XYZ”);   6.   Type the value of foo at line 6.()

考题 public class test(   public static void main(stringargs){   string foo = args [1];   string foo = args ;   string foo = args ;   }   )   And command line invocation:  Java Test red green blue  What is the result? () A、 Baz has the value of “”B、 Baz has the value of nullC、 Baz has the value of “red”D、 Baz has the value of “blue”E、 Bax has the value of “green”F、 The program throws an exception.

考题 Given  1.  public class Foo {  2.  public static void main (String [] args) }  3.  try { return;}  4.  finally { Syste.out.printIn (“Finally”);}  5. }  6. }   What is the result( )?A、 The program runs and prints nothing.B、 The program runs and prints “Finally”.C、 The code comiles. But an exception is thrown at runtime.D、 The code will not compile because the catch block is missing.

考题 int index = 1;  String [] test = new String[3];  String foo = test[index];     What is the result?()  A、 Foo has the value “”B、 Foo has the value nullC、 An exception is thrownD、 The code will not compile

考题 填空题5. String foo = “base”;  6. foo.substring(0,3);  7. foo.concat(“ket”)  8.     Type the value of foo at line 8.()

考题 填空题3. string foo = “ABCDE”;  4. foo.substring(3);  5. foo.concat(“XYZ”);  6.     Type the value of foo at line 6.()

考题 单选题1. public class Test {   2. public static void main (String args) {   3. unsigned byte b = 0;   4. b--;   5.   6. }   7. }   What is the value of b at line 5?()A  -1B  255C  127D  Compilation will fail.E  Compilation will succeed but the program will throw an exception at line 4.

考题 单选题public class test(  public static void main(string[]args){  string foo = args [1];  string foo = args [2];  string foo = args [3];  }  )  And command line invocation: Java Test red green blue   What is the result?()A  Baz has the value of “”B  Baz has the value of nullC  Baz has the value of “red”D  Baz has the value of “blue”E  Bax has the value of “green”F  The program throws an exception.

考题 单选题int index = 1;  String [] test = new String[3];  String foo = test[index];     What is the result?()A  Foo has the value “”B  Foo has the value nullC  An exception is thrownD  The code will not compile

考题 填空题1. public class Test { 2. public static String output =””; 3.  4. public static void foo(int i) { 5. try { 6. if(i==1) { 7. throw new Exception(); 8. } 9. output += “1”; 10. } 11. catch(Exception e) { 12. output += “2”; 13. return; 14. } 15. finally { 16. output += “3”;17. } 18. output += “4”; 19. } 20.  21. public static void main(String args[]) { 22. foo(0); 23. foo(1); 24.  25. }26. } What is the value of the variable output at line 23?()

考题 单选题2. public class Foo implements Runnable (  3. public void run (Thread t) {  4. system.out.printIn(“Running.”);  5. }  6. public static void main (String[] args)  {  7. new thread (new Foo()).start(); 8. )  9. )   What is the result?()A  An exception is thrown.B  The program exists without printing anything.C  An error at line 1 causes compilation to fail.D  An error at line 6 causes the compilation to fail.E  “Running” is printed and the program exits.

考题 单选题int index = 1;   String test = new String;   String foo = test[index];  What is the result?()A Foo has the value “”B  Foo has the value nullC  An exception is thrownD  The code will not compile

考题 单选题public class test(   public static void main(stringargs){   string foo = args [1];   string foo = args ;   string foo = args ;   }   )   And command line invocation:  Java Test red green blue  What is the result? ()A  Baz has the value of “”B  Baz has the value of nullC  Baz has the value of “red”D  Baz has the value of “blue”E  Bax has the value of “green”F  The program throws an exception.

考题 多选题Given: 6. Which two successfully translate and result in a value of true?()A${true or false}B${requestScope[foo][0]  500}C${requestScope[’foo’][1] = 420}D${(requestScope[’foo’][0] lt 50)  (3 gt 2)}

考题 单选题Which retrieves the value associated with “foo” from within an HttpServlet?()A  String value = getServletConfig( ).getParameter(“foo”);B  String value = getServletContext( ).getAttribute(“foo”);C  Object value = getServletContext( ).getInitParameter(“foo”);D  String value = getServletContext( ).getInitParameter(“foo”)

考题 单选题Given the JSP code: and the Classic tag handler code: 5. public int doStartTag() throws JspException { 6. // insert code here 7. // return int 8. } Assume there are no other "foo" attributes in the web application. Which invocation on the pageContextobject,inserted at line 6,assigns "bar" to the variable x?()A String x = (String) pageContext.getAttribute(foo)B String x = (String) pageContext.getRequestScope(foo)C It is NOT possible to access the pageContext object from within doStartTagD String x = (String) pageContext.getRequest().getAttribute(foo)E String x = (String) pageContext.getAttribute(foo, PageContext.ANY_SCOPE)