程序将创建文件输入流的代码置于try-catch语句中,其目的是捕获并处理_____。()
A. 文件太长异常
B. 打开文件太多异常
C. 文件找不到异常
D. 文件含有病毒异常
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Look at the following code:(情看下列语句:)Integer myNumber = new Integer(5);int var = myNumber;Which of the following is true about the second statement?(关于第二个语句,下列哪一项是正确的?)
A. It results in an error because you can not assign a wrapper class object to a primitive variable.(它导致错误,因为不能将包装类对象分配给原始变量。
B. The statement performs auto boxing.(该语句执行自动封装)
C. The statement performs unboxing (语句执行解绑)
D. The statement performs unwrapping.(语句执行展开)
Look at the following code.(请看下列代码)Integer myNumber;myNumber = 5;Which of the following is true about the second statement?(关于第二个语句,下列哪一项是正确的?)
A. It results in an error because you can not assign a primitive type to a wrapper class object.(它会导致错误,因为不能将原始类型分配给包装类对象。)
B. The statement performs auto boxing.(语句执行自动封装)
C. The statement performs unboxing.(语句执行解绑)
D. The statement performs auto wrapping.(语句执行自动包装)
What will be the tokens in the following statement?(以下语句中的标记将是什么?)String str = "red$green&blue#orange"; String tokens = str.split("[$]");
A. "red", "green", "blue"and"orange"
B. "$", "&", and"
C. "
D. "[", "$", "&", "
E. ", and"]"
F. None of theabove
Which of the following statements will print the maximum value an int variable may have?(下列哪一条语句将打印int变量可能具有的最大值?)
A. System.out.println(MAX_VALUE);
B. System.out.println(integer.MAX_VALUE);
C. System.out.println(Integer.MAX_VALUE);
D. System.out.println(INTEGER.MAX_VALUE);