Variables

Write the code to find out the index number of b in the string "The wall is big and wide"

For a string (s1), which method is used find the character at an index?

• s1.CharAt( )

• s1.IndexOf( )

• s1.Find( )

• s1.ReplaceAll( )

How to change the word "Ras-Al-Khaima" to "Ras Al Khaima"? Which method? write the code

Which method is used to convert a string to uppercase in Java?

• s1.ToUpperCase( )

• s1.UpperCase( )

• s1.ConvertToUpper( )

• s1.MakeUpper( )

What method would you use to concatenate two strings in Java?

• s1.Concat( )

• s1.Add( )

• s1.Merge( )

• s1.Combine( )

Which method is used to check if a string contains a specific substring?

• s1.Contains( )

• s1.HasSubstring( )

• s1.IndexOf( )

• s1.FindSubstring( )

For a string (s1), which method is used to replace a specific character with another character?

• s1.Replace( )

• s1.Substitute( )

• s1.Change( )

• s1.Modify( )

What method would you use to check the length of a string in Java?

• s1.Length( )

• s1.Size( )

• s1.Count( )

• s1.Measure( )

String x = "10";

String y = "20";

String z = x + y;

Guess the output.

• 1020

• 10 20

• 30

• "10 20"

What will be the output of below code?

String s1= "Hook'em Horns!";

println(s1.substring(3,6));

• k'em

• ok'

• k'e

• ok'e