public class test {  public static void main(String [] a) {  assert a.length == 1;  }  }  Which two will produce an AssertionError?()A、 java testB、 java -ea testC、 java test file1D、 java -ea test file1E、 java -ea test file1 file2F、 java -ea:test test file1

public class test {  public static void main(String [] a) {  assert a.length == 1;  }  }  Which two will produce an AssertionError?()

  • A、 java test
  • B、 java -ea test
  • C、 java test file1
  • D、 java -ea test file1
  • E、 java -ea test file1 file2
  • F、 java -ea:test test file1

相关考题:

下列程序的作用是在屏幕上显示一个200×200大小的窗口,在横线上填入相应的语句。import java.awt.*;public class Test extends Frame. {public static void main (String args[]) {Test t=new Test ("Hello");t.setSize (200,200);t.setBackground (Color.re@D)@;【 】;}public Test (String str) {super(str);}}

阅读下列代码 public class Test 2005{ public static void main(String args[]){ Strings="Test"; switch(s){ case "Java":System.out.print("Java"); break; case "Language":System.out.print("Language"); break; case "Test":System.out.ptint("Test"); break; } } } 其运行结果是A.JavaB.LanguageC.TestD.编译出错

( 19 )阅读下列代码public class Test2005{public static void main(String args[]){String s= ″ Test ″ ;Switch(s){case ″ Java ″ : System.out.print( ″ Java ″ ) ;break ;case ″ Language ″ : System.out.print( ″ Language ″ ) ;break ;case ″ Test ″ : System.out.print( ″ Test ″ ) ;break ;}}}其运行结果是A ) JavaB ) LanguageC ) TestD )编译出错

在执行下面这段Java程序时: public class Test { public static void main (String[] args) { String s1=args[0]; String s2=args[1]; String s3=args[2]; } }若编译程序后键入命令: java Test one two three,那么变量s1所引用的字符串为( )。A.nullB.testC.oneD.java

如下两个源程序文件,分别编译后,运行Example.class文件,运行结果为______。AB.java文件代码如下;package test;public class AB{int a=60;public void show(){System.out.println(”a=”+a);}Example.java文件代码如下:import test.AB;class Example{public static void main(String args[]){AB bj=new AB();obj.show();}}

下列哪个选项的java源文件代码片段是不正确的?A.package testpackage; public class Test{ }B.import java. io. *; package testpaekage; public class Test { }C.import java.io.*; class Person { } public class Test { }D.import java.io.*; import java. awt.*; public class Test{ }

阅读下列代码 public class Test { public static void main(String args[]) { String s = "Test"; switch (s) { case "Java": System.out.print("Java"); break; case "Language": System.out.print("Language"); break; case "Test": System.out.print("Test"); break; } } } 其运行结果是( )。A.JavaB.LanguageC.TestD.编译出错

阅读卜列代码 public class Test2005{ public static voidmain(Stringargs[]){ String s="Test"; switch(s){ case"Java":System.out.print("Java"); break; case"Language":System.out.print("Language"); break; case"Test":System.out.print("Test"); break; } } } 其运行结果是( )。A.JavaB.LanguageC.TestD.编译时出错

下列哪个选项的java源文件程序段是不正确的? ( )A.package testpackage; public class Test{ }B.import java.io.*; package testpackage; public class Test{ }C.import java.i.*; class Person{} public class Test{ }D.import java.io.*; import java.awt.*; public class Test { }

阅读下列代码 public class Test2005{ public static void main(String args[]){ String s="Test"; switch(s){ case"Java":System.out.print("Java"); break; case"Language":System.out.print("Lan- guage"); break; case"Test":System.out.print("Test"); break; } } } 其运行结果是( )。A.JavaB.LanguageC.TestD.编译时出错

public class Test {  public static void main(String [] args) {  boolean assert = true;  if(assert) {  System.out.println(”assert is true”);  }  }  } Given:  javac -source 1.3 Test.java  What is the result?() A、 Compilation fails.B、 Compilation succeeds with errors.C、 Compilation succeeds with warnings.D、 Compilation succeeds without warnings or errors.

public class Test {   public static void main (Stringargs) {   String foo = args[1];   String bar = args;   String baz = args;   System.out.printIn(“baz = ” + baz);  }   }   And the output:  Baz = 2   Which command line invocation will produce the output?()A、 Java Test 2222B、 Java Test 1 2 3 4C、 Java Test 4 2 4 2D、 Java Test 4 3 2 1

以下哪些是合法的构造RandomAccessFile对象的代码()。A、RandomAccessFile(new File("D:////myex//dir1//..//test.java"),"rw")B、RandomAccessFile("D:////myex//test.java","r")C、RandomAccessFile("D:////myex//test.java")D、RandomAccessFile("D:////myex//test.java","wr")

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.

public class Test {  public static void main (String[]args) {  String foo = args[1];  String bar = args[2];  String baz = args[3];  System.out.printIn(“baz = ” + baz);  }  }  And the output:  Baz = 2  Which command line invocation will produce the output?()  A、 Java Test 2222B、 Java Test 1 2 3 4C、 Java Test 4 2 4 2D、 Java Test 4 3 2 1

public class Test{  public static void main( String[] argv ){  // insert statement here  }  }   Which statement, inserted at line 3, produces the following output?()  Exception in thread “main” java.lang.AssertionError: true at Test.main(Test.java:3)  A、 assert true;B、 assert false;C、 assert false : true;D、 assert false == true;E、 assert false: false;

Public class test (  Public static void stringReplace (String text)  (  Text = text.replace (‘j’ , ‘i’);  )  public static void bufferReplace (StringBuffer text)  (  text = text.append (“C”)  )   public static void main (String args[]}  (  String textString = new String (“java”); StringBuffer text BufferString = new StringBuffer (“java”);  stringReplace (textString);  bufferReplace (textBuffer);  System.out.printLn (textString + textBuffer);  ) )  What is the output?()

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.

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.

填空题Public class test (  Public static void stringReplace (String text)  (  Text = text.replace (‘j’ , ‘i’);  )  public static void bufferReplace (StringBuffer text)  (  text = text.append (“C”)  )   public static void main (String args[]}  (  String textString = new String (“java”);  StringBuffer text BufferString = new StringBuffer (“java”);  stringReplace (textString);  BufferReplace (textBuffer);  System.out.printLn (textString + textBuffer);  )  )   What is the output?()

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public class Test {  public static void main (String[]args) {  String foo = args[1];  String bar = args[2];  String baz = args[3];  System.out.printIn(“baz = ” + baz);  }  }  And the output:  Baz = 2  Which command line invocation will produce the output?()A Java Test 2222B Java Test 1 2 3 4C Java Test 4 2 4 2D Java Test 4 3 2 1

单选题public class Test{  public static void main( String[] argv ){  // insert statement here  }  }   Which statement, inserted at line 3, produces the following output?()  Exception in thread “main” java.lang.AssertionError: true at Test.main(Test.java:3)A assert true;B assert false;C assert false : true;D assert false == true;E assert false: false;

单选题public class Test {  public static void main(String [] args) {  boolean assert = true;  if(assert) {  System.out.println(”assert is true”);  }  }  } Given:  javac -source 1.3 Test.java  What is the result?()A Compilation fails.B Compilation succeeds with errors.C Compilation succeeds with warnings.D Compilation succeeds without warnings or errors.

单选题Which command line invocation will produce the output?()A  java Test 2222B  java Test 1234C  java Test 4242D  java Test 4321

多选题public class test {  public static void main(String [] a) {  assert a.length == 1;  }  }  Which two will produce an AssertionError?()Ajava testBjava -ea testCjava test file1Djava -ea test file1Ejava -ea test file1 file2Fjava -ea:test test file1