Let s1 be " Welcome " and s2 be " welcome ". Write the code for the following statements: a. Check whether s1 is equal to s2 and assign the result to a Boolean variable isEqual. b. Check whether s1 is...

Let s1 be " Welcome " and s2 be " welcome ". Write the code for the following statements:
a. Check whether s1 is equal to s2 and assign the result to a Boolean variable isEqual.
b. Check whether s1 is equal to s2, ignoring case, and assign the result to a Boolean variable isEqual.
c. Compare s1 with s2 and assign the result to an int variable x.
d. Compare s1 with s2, ignoring case, and assign the result to an int variable x.
e. Check whether s1 has the prefix AAA and assign the result to a Boolean variable b.
f. Check whether s1 has the suffix AAA and assign the result to a Boolean variable b.
g. Assign the length of s1 to an int variable x.
h. Assign the first character of s1 to a char variable x.
i. Create a new string s3 that combines s1 with s2.
j. Create a substring of s1 starting from index 1.
k. Create a substring of s1 from index 1 to index 4.
l. Create a new string s3 that converts s1 to lowercase.
m. Create a new string s3 that converts s1 to uppercase.
n. Create a new string s3 that trims whitespaces on both ends of s1.
o. Assign the index of the first occurrence of the character e in s1 to an int variable x.
p. Assign the index of the last occurrence of the string abc in s1 to an int variable x.