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String Methods:

s2 = s1.toLowerCase()

Converts the string to all lowercase

s2 = s1.toUppercCase()

Converts the string to all Uppercase

s2 = s1.replace( 'x', 'y')

Replaces all appearances of x with y

s2 = s1.trim()

Removes white spaces at the beginning and end of the string

s1.equals(s2)

Returns 'true' if s1 is equal to s2

s1. equalsIgnoreCase(s2)

Returns 'true' if s1 = s2, ignoring the case of characters

s1.length()

Gives the length of s 1

s1.chartAt(n)

Gives nth character of s 1

s1.compareTo(s2)

Returns negative if s1 < s2, positive if s1 > s2, and zero if s1 is equal s2

s1.concat(s2)

Concatenates s1 and s2

s1.substring(n)

Gives substring starting from nth character

s1.substring(n, m)

Gives substring starting from nth character up to mth (not including mth)

String.valueOf(p)

Creates a string object of the parameter p (simple type or object)

p.toString()

Creates a string representation of the object p

s1.indexOf('x')

Gives the position of the first occurrence of 'x' in the string s1

s1.indexOf('x', n)

Gives the position of 'x' that occurs after nth position in the string s1

s1.lastIndexOf(‘x’)

Gives the position of the last occurrence of 'x' in the string s1

s1.startsWith(“s2”)

Returns true if s1 begins with s2

s1.endsWith(“s2”)

Returns true if s1 ends with s2

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