Level 2 - Methods

Question 1

Implement this method that takes any string and make it lowercase:

public static void calmDown(String s)
{

}

Answer 1

public static void calmDown(String s)
{
System.out.println( s.toLowerCase( ) );
}

Question 2

What is output by the following code?
String s = “Beaver Cleaver”;
System.out.println(s.toUpperCase( ));

Answer 2

BEAVER CLEAVER

Question 3

What is output by the following code?
String s = “computer science”;
System.out.println(s.length( ));

Answer 3

16
//note - remember to count the spaces

Question 4

Implement this method that would use the string s and print to the screen: win
String s = “twins”;

Answer 4

System.out.println(s.substring(1, 4) );

Question 5

Write the signature for the static method that would make this line of code work:
double d = someMethod(“Joe”, 15.2);

Answer 5

public static double someMethod ( String s, double x)