
Java Basics Recap
Authored by Suprabha Malhar-Jain
Computers
9th Grade - University
Used 5+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which method to use to find length of a string?
length()
size()
long()
count()
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is String a primitive data type?
Yes
No
Both
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which data type gets returned from length() method in String class?
double
String
int
number
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
String txt = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
What is the correct way to find the length of "txt" string?
int len = length(txt);
float len = txt.length();
int len = txt.length();
double len = length(txt);
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is correct method to convert String into uppercase
changeUpperCase()
convertUpperCase()
toUpper()
toUpperCase()
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Choose correct purpose of indexOf() in String class.
returns the index (the position) of the last occurrence of a specified text in a string
returns the character of the first occurrence of a specified character in a string
returns the index (the position) of the first occurrence of a specified text in a string (excluding whitespace)
returns the index (the position) of the first occurrence of a specified text in a string (including whitespace)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the return type of equalsIgnorecase() method?
int
String
char
boolean
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