单项选择题
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 null
C. 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.
点击查看答案
相关考题
- 单项选择题 int index = 1; boolean test = new Boolean; boolean foo= test [index]; What is the result?()
- 多项选择题 Whichthreearevaliddeclarationsofafloat?()
- 多项选择题 WhichtwostatementsarereservedwordsinJava?()
- 单项选择题 //point X public class foo ( public static void main (Stringargs) throws Exception { printWriter out = new PrintWriter (new ) java.io.outputStreamWriter (System.out), true; out.printIn(“Hello”); } ) Which statement at PointX on line 1 allows this code to compile and run?()
- 单项选择题 interface foo { int k = 0; } public class test implements Foo ( public static void main(String args) ( int i; Test test = new test (); i= test.k; i= Test.k; i= Foo.k; ) ) What is the result? ()
- 单项选择题 public class enclosingone ( public class insideone{} ) public class inertest( public static void main (stringargs)( enclosingone eo= new enclosingone (); //insert code here ) ) Which statement at line 7 constructs an instance of the inner class?()
- 单项选择题 package foo; public class Outer ( public static class Inner ( ) ) Which statement is true?()
- 单项选择题 Whichstatementistrue?()
- 多项选择题 Whichtwodemonstratean“isa”relationship?()
- 多项选择题 public class MethodOver { public void setVar (int a, int b, float c) { } } Which two overload the setVar method?()
- 多项选择题 public class ConstOver { public ConstOver (int x, int y, int z) { } } Which two overload the ConstOver constructor? ()
- 单项选择题 public class test { public static void add3 (Integer i){ int val = i.intValue ( ); val += 3; i = new Integer (val); } public static void main (String args [ ] ) { Integer i = new Integer (0); add3 (i); system.out.printIn (i.intValue ( ) ); } } What is the result?()
- 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.printIn (textString + textBuffer); } ) What is the output?()
- 填空题 Public class test ( Public static void main (String args) ( System.out.printIn (6^3); ) ) What is the output? ()
- 单项选择题 public class test ( private static int j = 0; private static boolean methodB(int k) ( j += k; return true; ) public static void methodA(int i) { boolean b: b = i < 10 | methodB (4); b = i < 10 || methodB (8); ) public static void main (String args) } ( methodA (0); system.out.printIn(j); ) ) What is the result?()
- 单项选择题 Integer i = new Integer (42); Long 1 = new Long (42); Double d = new Double (42.0); Which two expressions evaluate to True? ()
- 单项选择题 public class test ( public static void main (String args) { int i = 0xFFFFFFF1; int j = ~i; } ) What is the decimal value of j at line 5?()
- 单项选择题 Consider the following class: class Test(int i) { void test(int i) { System.out.println(“I am an int.”); } void test(String s) { System.out.println(“I am a string.”); } public static void main(String args) { Test t=new Test(); char ch=“y”; t.test(ch); } } Which of the statements below is true?()
- 单项选择题 Howcanyouforcegarbagecollectionofanobject?()
- 多项选择题 Choosethethreevalididentifiersfromthoselistedbelow.()