Java OCA OCP Practice Question 2937

Question

Given the proper imports, and given: 

17.  public void go() {  
18.    NumberFormat nf, nf2;  //from  www .jav  a2s .  c o m
19.    Number n;  
20.    Locale[] la = NumberFormat.getAvailableLocales();  
21.    for(int x=0; x < 10; x++) {  
22.      nf = NumberFormat.getCurrencyInstance(la[x]);  
23.      System.out.println(nf.format(123.456f));  
24.    }  
25.    nf2 = NumberFormat.getInstance();  
26.    n = nf2.parse("123.456f");  
27.    System.out.println(n);  
28. }

Given that line 20 is legal, which are true? (Choose all that apply.)

  • A. Compilation fails.
  • B. An exception is thrown at runtime.
  • C. The output could contain "123.46"
  • D. The output could contain "123.456"
  • E. The output could contain "$123.46"


A is correct.

Note

The parse() method throws an Exception that must be handled or declared.

If the exception was handled, C, D, and E would be correct.

Remember that when you create a NumberFormat object, its Locale is immutable, but in this code we're creating a new NumberFormat object with each iteration of the loop.




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