Computer MCQ

Which value is returned if the value of an element given in binary Search () method is not found in an array?

Which value is returned if the value of an element given in binary Search () method is found in an array?

Is array name a reference variable referring to memory location where its elements are stored?

Array is treated as an object of the following class.

By using which of the following array of arrays can we practically get multi- dimensional arrays?

Which type of array does Java support basically?

What is used to have collection of variables of same data type?

Which of the statement is intended to check whether the time of Calendar object of Calendar class is of morning or not?

What will be set by execution of call “Calendar.Set (Calendar.Date,20)” if Calendar is an object of Calendar Class?

By using which of the following method we can set the values of field constant for Calendar class?

Which of the following is a subclass of Calendar class?

Which kind of names are given to the constants defined in Calendar class?

Which information can be extracted by Calendar class of java.util package of Java?

Which of the following classes is provided in java.util package?

Date () method is stored in datel1 variable. Which statement is used to present current date and time as string?

Does the Date class of Java represent the value up to precision?

Which of the following Java class encapsulate both date and time?

Which package of Java library provides Date class?

Which of the following statements is used to know the number of characters of variable Str?

Which of the following method of String class is used to convert a string into an array of bytes?

By using which methods of String class can we determine the length of string?

By using which methods of String class one can know the number of characters of a string?

To perform which of the following operation String class of Java does not provide any method?

While using which of the following we need to use ()?

What is length for String object?

What is length for array variable?

Which of the following statement is true to return a string with all characters of Str1 converted to uppercase?

Which of the following statements is true to return a string with all characters of Str1 converted to lowercase?

Which of the following methods is for String class?

Which of the following methods is for String class?

Which of the following methods is for String class?

Which memory location do both the objects refer if they are created using “new” operator in a program?

For which object, separate memory is not allocated if string objects Strl and Str2 are created using same literals but without “new” operator?

If Str1 and Str2 are created without using “new” operator then which variable refers to the same instance as created for Str1?

What is specified by the statement Str1 = = Str2 if Str1 and Str2 are created using “new” operator?

What is specified if string objects Str1 and Str2 are created using same string literal but without using “new” operator?

Which of the following statements is true to compare the contents of Str1 and Str2?

Using which operator if string objects are created than separate memory is allocated even if strings are identical?

Which statement is true in reference of memory for second object when two string objects are created using same string literals?

Where are literals stored?

When should we use an array of bytes instead of array of characters when following characters are present?

What should we use instead of array of characters if the characters are ASCII?

How many bytes are used to store characters in Java?

Which operator is used in Java to create an object?

Which class does Java support to use variables that can store strings?

In which of the following symbols a sequence of characters is enclosed?

What can be considered as 1-D array of characters?

Which of the following is a sequence of characters?

What is not created by declaring an array without initialization?

What can be the size of 2nd, 3rd…. Dimensions of multi-dimensional arrays?