HiT - Quiz 2

int len = "jump it!".length();

What is the value of len?

• 8

• 7

• 9

• 6

• This code does not compile.

String s = "whatever".substring(1,4);

What is the value of s?

• "hate"

• "hat"

• "whate"

• "what"

• StringIndexOutOfBoundsException

int p = "Go Paw Patrol!".indexOf("p");

What is the value of p?

• 0

• 4

• 3

• -1

• This code will not compile.

String s = "cool cat".substring(6);

What is the value of s?

• "cat"

• "at"

• "cool c"

• This code does not compile.

• StringIndexOutOfBoundsException

int x = "Mary".compareTo("Molly");

if (x>=0) System.out.print("Yes");

else System.out.print("No");

What is the output?

• Yes

• No

• There is no output.

• This code will not compile.

String s1 = "goat";

String s2 = s1.substring(0,s1.length());

boolean z = s1.equals(s2);

What is the value of z?

• true

• false

• This code will not compile.

• StringIndexOutOfBoundsException

Which code segment should go in the blank so that count is equal to the number of times "whoa" occurs in str?

• str.length() -2

• str.length() -4

• str.length() - 3

• str.length() - 1

• str.length()

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);

Which is correct method to convert String into uppercase

• changeUpperCase()

• convertUpperCase()

• toUpper()

• toUpperCase()

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)