String regex = ;
String regex = ;
String regex = .*;
String regex = //s;
String regex = //.//s*;
第1题:
package test1; public class Test1 { static int x = 42; } package test2; public class Test2 extends test1.Test1 { public static void main(String[] args) { System.out.println(“x = “ + x); } } What is the result?()
第2题:
Given: 11.String test = "a1b2c3"; 12.String[] tokens = test.split("//d"); 13.for(String s: tokens) System.out.print(s + " "); What is the result?()
第3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)
第4题:
int index = 1; String [] test = new String[3]; String foo = test[index]; What is the result?()
第5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”?()
第6题:
Given: 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,correctly splits test into "Test A","Test B",and "Test C"?()
第7题:
Foo has the value “”
Foo has the value null
An exception is thrown
The code will not compile
第8题:
Java Test 2222
Java Test 1 2 3 4
Java Test 4 2 4 2
Java Test 4 3 2 1
第9题:
assert true;
assert false;
assert false : true;
assert false == true;
assert false: false;
第10题:
String regex = ;
String regex = ;
String regex = .*;
String regex = //s;
String regex = //.//s*;
第11题:
a b c
1 2 3
a1b2c3
a1 b2 c3
第12题:
String regex="";
String regex=" .";
String regex=".*";
String regex="//s";
String regex="//.//s*";
String regex="//w[/.]+";
第13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?()
第14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?()
第15题:
11. String test = “This is a test”; 12. String[] tokens = test.split(”/s”); 13. System.out.println(tokens.length); What is the result?()
第16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?()
第17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?()
第18题:
String regex = “”;
String regex = “ “;
String regex = “.*“.
String regex = “//s”
String regex = “//.//s*”;
String regex = “//w[ /.] +“;
第19题:
An exception is thrown at runtime.
1
4
Compilation fails.
0
第20题:
0
1
4
Compilation fails.
第21题:
Foo has the value “”
Foo has the value null
An exception is thrown
The code will not compile
第22题:
0
1
4
Compilation fails.
An exception is thrown at runtime.
第23题:
Line 5 will not compile, because void methods cannot be overridden.
Line 12 will not compile, because there is no version of test() that rakes a charargument.
The code will compile but will throw an exception at line 12.
The code will compile and produce the following output: I am an int.
The code will compile and produce the following output: I am a String.