11. String test = “This is a test”;  12. String[] tokens = test.split(”/s”);  13. System.out.println(tokens.length);  What is the result?() A、 0B、 1C、 4D、 Compilation fails.E、 An exception is thrown at runtime.

11. String test = “This is a test”;  12. String[] tokens = test.split(”/s”);  13. System.out.println(tokens.length);  What is the result?() 

  • A、 0
  • B、 1
  • C、 4
  • D、 Compilation fails.
  • E、 An exception is thrown at runtime.

相关考题:

11. String test= “a1b2c3”;  12. String[] tokens = test.split(”//d”);  13. for(String s: tokens) System.out.print(s +“ “);  What is the result?() A、 a b cB、 1 2 3C、 a1b2c3D、 a1 b2 c3E、 Compilation fails.F、 The code runs with no output.G、 An exception is thrown at runtime.

public static void main(String[] args) {  String str = “null‟;  if (str == null) {  System.out.println(”null”);  } else (str.length() == 0) {  System.out.println(”zero”);  } else {  System.out.println(”some”);  }  }  What is the result?()A、 nullB、 zeroC、 someD、 Compilation fails.E、 An exception is thrown at runtime.

Given:   11. String test = "This is a test";   12. String[] tokens = test.split("/s");   13. System.out.println(tokens.length);   What is the result?()A、 An exception is thrown at runtime.B、 1C、 4D、 Compilation fails.E、 0

public class Test {  private static float[] f = new float[2];  public static void main(String args[]) {  System.out.println(“f[0] = “ + f[0]);  }  }   What is the result?()  A、 f[0] = 0B、 f[0] = 0.0C、 Compilation fails.D、 An exception is thrown at runtime.

public class Test {  public static void main(String[] args) {  String str = NULL;  System.out.println(str);  }  }   What is the result?()  A、 NULLB、 Compilation fails.C、 The code runs with no output.D、 An exception is thrown at runtime.

public class Test {  public static void main( String[] args) {  String foo = args[1];  String bar = args[2];  String baz = args[3];  System.out.println(“baz = “ + baz); }  }   And the command line invocation: java Test red green blue   What is the result?()  A、 baz =B、 baz = nullC、 baz = blueD、 Compilation fails.E、 An exception is thrown at runtime.

11. class Animal { public String noise() { return “peep”; } }  12. class Dog extends Animal {  13. public String noise() { return “bark”; }  14. }  15. class Cat extends Animal {  16. public String noise() { return “meow”; }  17. }  .....  30. Animal animal = new Dog();  31. Cat cat = (Cat)animal;  32. System.out.printIn(cat.noise());  What is the result?() A、 peepB、 barkC、 meowD、 Compilation fails.E、 An exception is thrown at runtime.

public class Test {  private static int[] x;  public static void main(String[] args) {  System.out.println(x[0]);  }  }   What is the result?()   A、 0B、 nullC、 Compilation fails.D、 A NullPointerException is thrown at runtime.E、 An ArrayIndexOutOfBoundsException is thrown at runtime.

System.out.println(Math.sqrt(-4D));  What is the result?()  A、 –2B、 NaNC、 InfinityD、 Compilation fails.E、 An exception is thrown at runtime.

String a = null;  a.concat(“abc”);  a.concat(“def”);  System.out.println(a);   What is the result?()  A、 abcB、 nullC、 abcdefD、 Compilation fails.E、 The code runs with no output.F、 An exception is thrown at runtime.

public class Test {  public static void main(String [] args) {  System.out.println(args.length  4   args[4].equals(“-d”));  }  }   If the program is invoked using the command line: java Test One Two Three –d   What is the result?()  A、 trueB、 falseC、 Compilation fails.D、 An exception is thrown at runtime.

11. public static void test(String str) {  12. if(str == null | str.lellgth() == 0) {  13. System.out.println(”String is empty”);  14. } else {  15. System.out.println(”String is not empty”);  16. }  17. }  And the invocation:  31. test(llull);  What is the result?() A、 Au exception is thrown at runtime.B、 “String is empty” is printed to output.C、 Compilation fails because of au error in line 12.D、 “String is not empty” is printed to output.

11. String test = “Test A. Test B. Test C.”;  12. // insert code here  13. String[] result = test.split(regex);  Which regular expression inserted at line 12 will correctly split test into “Test A,” “Test B,” and “Test C”?()A、 String regex = “”;B、 String regex = “ “;C、 String regex = “.*“.D、 String regex = “//s”E、 String regex = “//.//s*”;F、 String regex = “//w[ /.] +“;

Given: 11.String test = "This is a test"; 12.String[] tokens = test.split("/s"); 13.System.out.println(tokens.length); What is the result?()A、0B、1C、4D、Compilation fails.

单选题public class Test {  private static float[] f = new float[2];  public static void main(String args[]) {  System.out.println(“f[0] = “ + f[0]);  }  }   What is the result?()A f[0] = 0B f[0] = 0.0C Compilation fails.D An exception is thrown at runtime.

单选题public class Test {  private static int[] x;  public static void main(String[] args) {  System.out.println(x[0]);  }  }   What is the result?()A 0B nullC Compilation fails.D A NullPointerException is thrown at runtime.E An ArrayIndexOutOfBoundsException is thrown at runtime.

单选题11. String test = “Test A. Test B. Test C.”;  12. // insert code here  13. String[] result = test.split(regex);  Which regular expression inserted at line 12 will correctly split test into “Test A,” “Test B,” and “Test C”?()A String regex = “”;B String regex = “ “;C String regex = “.*“.D String regex = “//s”E String regex = “//.//s*”;F String regex = “//w[ /.] +“;

单选题public class Test {  public static void main(String [] args) {  System.out.println(args.length  4   args[4].equals(“-d”));  }  }   If the program is invoked using the command line: java Test One Two Three –d   What is the result?()A trueB falseC Compilation fails.D An exception is thrown at runtime.

单选题String a = null;  a.concat(“abc”);  a.concat(“def”);  System.out.println(a);   What is the result?()A abcB nullC abcdefD Compilation fails.E The code runs with no output.F An exception is thrown at runtime.

单选题public class Test {  public static void main( String[] args) {  String foo = args[1];  String bar = args[2];  String baz = args[3];  System.out.println(“baz = “ + baz); }  }   And the command line invocation: java Test red green blue   What is the result?()A baz =B baz = nullC baz = blueD Compilation fails.E An exception is thrown at runtime.

单选题Given:   11. String test = "This is a test";   12. String[] tokens = test.split("/s");   13. System.out.println(tokens.length);   What is the result?()A An exception is thrown at runtime.B 1C 4D Compilation fails.E 0

单选题Given: 11.String test = "This is a test"; 12.String[] tokens = test.split("/s"); 13.System.out.println(tokens.length); What is the result?()A0B1C4DCompilation fails.

单选题public static void main(String[] args) {  String str = “null‟;  if (str == null) {  System.out.println(”null”);  } else (str.length() == 0) {  System.out.println(”zero”);  } else {  System.out.println(”some”);  }  }  What is the result?()A nullB zeroC someD Compilation fails.E An exception is thrown at runtime.

单选题System.out.println(Math.sqrt(-4D));  What is the result?()A –2B NaNC InfinityD Compilation fails.E An exception is thrown at runtime.

单选题11. String test = “This is a test”;  12. String[] tokens = test.split(”/s”);  13. System.out.println(tokens.length);  What is the result?()A 0B 1C 4D Compilation fails.E An exception is thrown at runtime.

单选题public class Test {  public static void main(String[] args) {  String str = NULL;  System.out.println(str);  }  }   What is the result?()A NULLB Compilation fails.C The code runs with no output.D An exception is thrown at runtime.

单选题11. String test= “a1b2c3”;  12. String[] tokens = test.split(”//d”);  13. for(String s: tokens) System.out.print(s +“ “);  What is the result?()A a b cB 1 2 3C a1b2c3D a1 b2 c3E Compilation fails.F The code runs with no output.G An exception is thrown at runtime.