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单选题
What will be written to the standard output when the following program is run?()   public class Q03e4 {   public static void main(String args[]) {   String space = " ";   String composite = space + "hello" + space + space;   composite.concat("world");   String trimmed = composite.trim();   System.out.println(trimmed.length());   }   }
A

5

B

6

C

7

D

12

E

13


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更多 “单选题What will be written to the standard output when the following program is run?()   public class Q03e4 {   public static void main(String args[]) {   String space = " ";   String composite = space + "hello" + space + space;   composite.concat("world");   String trimmed = composite.trim();   System.out.println(trimmed.length());   }   }A 5B 6C 7D 12E 13” 相关考题
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考题 以下是JAVA中正确的入口方法是? () A、 public static void main(String[] args){}B、 public static void main(String args){}C、 public void main(String[] args){}D、 public static int main(String[] args){}

考题 What will be the result of attempting to run the following program?()   public class Qaa75 {   public static void main(String args[]) {   String[][][] arr = {   { {}, null },   { { "1", "2" }, { "1", null, "3" } },   {},   { { "1", null } }  };   System.out.println(arr.length + arr[1][2].length);   }   }  A、The program will terminate with an ArrayIndexOutOfBoundsException.B、The program will terminate with a NullPointerException.C、4 will be written to standard output.D、6 will be written to standard output.E、7 will be written to standard output.

考题 What will be written to the standard output when the following program is run?()   public class Q63e3 {   public static void main(String args[]) {   System.out.println(9 ^ 2);   }   }  A、81B、7C、11D、0E、false

考题 Which declarations will allow a class to be started as a standalone program?()  A、public void main(String args[])B、public void static main(String args[])C、public static main(String[] argv)D、final public static void main(String [] array)E、public static void main(String args[])

考题 Public class test (  Public static void main (String args[])  (  System.out.printIn (6 ^ 3);  )  )   What is the output?()

考题 What will be the result of attempting to compile and run the following code?()   public class Q6b0c {   public static void main(String args[]) {  int i = 4;  float f = 4.3;   double d = 1.8;   int c = 0;   if (i == f) c++;   if (((int) (f + d)) == ((int) f + (int) d))  c += 2;   System.out.println(c);   }   }  A、The code will fail to compile.B、0 will be written to the standard output.C、1 will be written to the standard output.D、2 will be written to the standard output.E、3 will be written to the standard output.

考题 What will be written to the standard output when the following program is run?()  public class Qd803 {   public static void main(String args[]) {   String word = "restructure";   System.out.println(word.substring(2, 3));   }   }  A、estB、esC、strD、stE、s

考题 What will be written to the standard output when the following program is run?()   public class Q8499 {   public static void main(String args[]) {  double d = -2.9;   int i = (int) d;  i *= (int) Math.ceil(d);  i *= (int) Math.abs(d);   System.out.println(i);   }   }A、12B、18C、8D、9E、27

考题 What will be written to the standard output when the following program is run?()   public class Q03e4 {   public static void main(String args[]) {   String space = " ";   String composite = space + "hello" + space + space;   composite.concat("world");   String trimmed = composite.trim();   System.out.println(trimmed.length());   }   }  A、5B、6C、7D、12E、13

考题 What will be written to the standard output when the following program is run?()   class Base {  int i;  Base() {   add(1);   }   void add(int v) {  i += v;  }   void print() {  System.out.println(i);  }   }   class Extension extends Base {  Extension() {  add(2);  }   void add(int v) {  i += v*2;  }  }   public class Qd073 {   public static void main(String args[]) {  bogo(new Extension());  }   static void bogo(Base b) {  b.add(8);  b.print();   }   }  A、9B、18C、20D、21E、22

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考题 单选题What will be the result of attempting to run the following program?()   public class Qaa75 {   public static void main(String args[]) {   String[][][] arr = {   { {}, null },   { { "1", "2" }, { "1", null, "3" } },   {},   { { "1", null } }  };   System.out.println(arr.length + arr[1][2].length);   }   }A The program will terminate with an ArrayIndexOutOfBoundsException.B The program will terminate with a NullPointerException.C 4 will be written to standard output.D 6 will be written to standard output.E 7 will be written to standard output.

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考题 单选题以下是JAVA中正确的入口方法是? ()A  public static void main(String[] args){}B  public static void main(String args){}C  public void main(String[] args){}D  public static int main(String[] args){}

考题 单选题What will be written to the standard output when the following program is run?()   public class Q8499 {   public static void main(String args[]) {  double d = -2.9;   int i = (int) d;  i *= (int) Math.ceil(d);  i *= (int) Math.abs(d);   System.out.println(i);   }   }A 12B 18C 8D 9E 27

考题 单选题What will be written to the standard output when the following program is run?()  public class Qd803 {   public static void main(String args[]) {   String word = "restructure";   System.out.println(word.substring(2, 3));   }   }A estB esC strD stE s

考题 填空题Public class test (  Public static void main (String args[])  (  System.out.printIn (6 ^ 3);  )  )   What is the output?()

考题 单选题What will be written to the standard output when the following program is run?()   class Base {  int i;  Base() {   add(1);   }   void add(int v) {  i += v;  }   void print() {  System.out.println(i);  }   }   class Extension extends Base {  Extension() {  add(2);  }   void add(int v) {  i += v*2;  }  }   public class Qd073 {   public static void main(String args[]) {  bogo(new Extension());  }   static void bogo(Base b) {  b.add(8);  b.print();   }   }A 9B 18C 20D 21E 22

考题 单选题What will be written to the standard output when the following program is run?()   public class Q63e3 {   public static void main(String args[]) {   System.out.println(9 ^ 2);   }   }A 81B 7C 11D 0E false

考题 单选题public class Test {  public static void replaceJ(string text)  {  text.replace (‘j’, ‘l’);  }  public static void main(String args[])  {  string text = new String (“java”)  replaceJ(text);  system.out.printIn(text);  }  }      What is the result?()A  The program prints “lava”B  The program prints “java”C  An error at line 7 causes compilation to fail.D  Compilation succeeds but the program throws an exception.