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Strings Test

Last updated about 2 years ago

34 questions

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Question 2

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Question 3

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Question 4

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Question 5

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Question 6

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Question 7

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Question 8

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Question 9

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Question 10

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Question 11

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Question 12

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Question 13

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Question 14

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Question 15

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Question 16

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Question 17

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Question 18

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Question 19

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Question 20

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Question 21

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Question 22

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Question 23

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Question 24

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Question 25

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Question 26

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Question 27

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Question 28

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Question 31

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Question 34

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DIRECTIONS : Complete the method below.
You will be writing only the go method.
The go method should:
Two words are sent in to the go method as word1 and letter1
You will RETURN an int containing the SUM of both locations for letter1 in word1
The answer will be printed in main so you do not need any System.out.println
Show your work is there if you need it.

public static int go (String word1, char letter1){
//Your code will go here
}

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.substring(4,5) );

a

u

p

l

s

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.substring( s.length()-1 ) );

s

i

ci

a

p

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.charAt( s.length()-3 ) );

s

i

a

p

c

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.charAt(0) );

a

c

p

i

s

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.charAt(5) );

c

s

p

i

u

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.indexOf( "s" ) );

3

6

5

4

9

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.indexOf( "apluscomp" ) );

0

1

2

3

4

What is output by the code below?

String s = "ishouldofstudied";
System.out.println( s.length() );

13

12

15

16

14

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.substring( 6 ) );

aplus

compsci

sci

o

ompsci

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.indexOf( "b" ) );

0

1

2

3

-1

What is output by the code below?

String s = "apluscompsci";
int x = s.indexOf( "c" );
System.out.println( s.substring( x )  );

compsci

sci

comp

aplus

pluscompsci

What is output by the code below?

int x = "alligator".length() - "crocodile".length();
System.out.println( x );

1

-2

2

-1

0

What is output by the code below?

int x = "crocodile".length() - "croc".length();
System.out.println( x );

-5

1

-1

0

5

What is output by the code below?

String s = "apluscompsci";
System.out.println( s.substring(0,2) );

a

p

pl

ap

us

What is output by the code below?

String s = "apluscompsci";
int x = 3;
System.out.println( s.substring(x,x+1) );

s

u

p

0

m

What is output by the code below?

String s = "dog";
String r = "dog ";
System.out.println( s.equals( r ) );

1

0

false

true

null

What is output by the code below?

String s = "dog ";
String r = new String("dog");
System.out.println( s.equals( r ) );

true

1

null

false

0

What is output by the code below?

String s = "dog";
String r = new String("dog");
System.out.println( s != r );

0

false

1

true

null

What is output by the code below?

String s = "dog";
String r = "dog";
r = s;
s = null;
System.out.println( r );

true

null

dog

s

false

What is output by the code below?

String s = "dog";
String r = s;
s = null;
System.out.println( s );

null

s

true

false

dog

What is output by the code below?

String s = "Big dog";
String r = "A dog";
System.out.println( s.compareTo(r)  );

1

true

null

0

false

What is output by the code below?

String s = "dog";
String r = "cog";
System.out.println( r.compareTo(s) );

-1

3

null

0

1

What is output by the code below?

String s = "dodge";
String r = "cloths";
System.out.println( s.compareTo(r) );

1

0

null

3

-1

What is output by the code below?

String s = "bob";
String r = "bod";
System.out.println( s.compareTo(r) );

1

-2

-5

6

-6

What is output by the code below?

String s = 12;
int x = Integer.parseInt( s );
System.out.println( x + 3 );

There is no output due to an error.

0

x3

12

15

What is output by the code below?

String s = "12.7";
Double x = Double.parseDouble( s );
System.out.println( x + 3 );

15.7

There is no output due to an error.

0

x3

12.7

What is output by the code below?

String s = "12.7";
double x = Double.parseDouble( s );
System.out.println( x + 3 );

12.7

15.7

0

x3

There is no output due to an error.

What is output by the code below?

String s = "12";
int x = Integer.parseInt( s );
System.out.println( s + x + 3 );

There is no output due to an error.

12x3

1215

12123

27

What is output by the code below?

System.out.println( "12" + 9 + 3 );

24

null

There is no output due to an error.

1293

1212

What is returned by the call     myst("aplus","aplus")?
public boolean myst(String a, String b)
{
    return a.equals( b );
}

1

false

true

null

0

What is returned by the call     myst("aplus","aplus")?
public boolean myst(String a, String b)
{
    return a == b;
}

1

null

false

0

true

What is returned by the call    myst("ana","banana")?
public boolean myst(String a, String b)
{
    return b.lastIndexOf(a)!=b.indexOf(a);
}

false

0

1

null

true

What is the purpose of myst?
public boolean myst(String a, String b)
{
    return b.lastIndexOf(a)!=b.indexOf(a);
}

to determine if a occurs exactly once in b

to determine if there are at least two occurrences of a in b.

none of the above

to determine if a is in b

to determine if there are less than two occurrences of a in b