B4 - More about Strings

What will the following write?

String str = "Hello World!" ;

str.substring(6);

System.out.println( str );

• World!

• Hello

• Hello World!

• The fragment will not compile.

Examine this code:

String str = "Hello World!" ;

System.out.println( str.substring(6) );

What will it write?

• World!

• Hello

• Hello World!

• The fragment will not compile.

Examine this code:

String str = "Hello World!" ;

System.out.println( str.length() );

What will it write?

• 0

• 10

• 11

• 12

Examine this code:

String myString = "";

System.out.println( myString.length() );

What what will it write?

• 0

• 1

• 2

• the code will not compile

Examine this code:

String str = "Hello\tWorld!" ;

System.out.println( str.length() );

What will it write?

• 0

• 10

• 11

• 12

Examine this code:

String str = "Hello World!" ;

What is the index of the character 'W' ?

• 0

• 5

• 6

• 7

Examine this code:

String str = "One Fine Day" ;

String val = str.substring(4) ;

System.out.println( val );

What does the fragment print?

• One Fine Day

• Fine Day

• Day

• One Fine

Examine this code:

String str = "One Fine Day" ;

String val = str.substring(0, 3) ;

System.out.println( val );

What does the fragment print?

• One Fine Day

• Fine Day

• One

• One Fine

Examine this code:

String str = "One Fine Day" ;

String val = str.substring(0, str.length() ) ;

System.out.println( val );

What does the fragment print?

• One Fine Day

• Fine Day

• One

• The code with throw an IndexOutOfBoundsException

Examine this code:

String str = "One Fine Day" ;

String val = str.substring(4, 7 ) ;

System.out.println( val );

What does the fragment print?

• nothing is printed since val contains an empty string.

• Fine

• Fin

• The code with throw an IndexOutOfBoundsException