Question

Q1# Consider the following string:
String hello = "Hi girls! hope your assignment1 is very easy.";
a. What is the value displayed by the expression hello.length()?
b. What is the value returned by the method call hello.charAt(12)?
c. Write an expression that refers to the letter p in the string referred to by hello

Q2# Modify the program to use a "while-do" loop instead of "for" loop.

int sum = 0;
int number = lowerbound; // declare and init loop index variable
while (number <= upperbound) { // test
sum += number;
++number; // update
}

Answer 1

1.

a)

String length is :45 that means there are 45 charecters in the string

b)

charecter at 12 index position is "p"

c)

Index of the letter p is 12

hello.indexOf("p");

This is the expresion which used to find the charecter at 12 th index position

2.

Using for loop

int sum = 0;

for( int number=lowerbound;number<=upperbound;number++)
       {
           sum+=number;
       }

using do while loop

int sum = 0;
       int number =lowerbound; // declare and init loop index variable
       do
       {
           if(number <= upperbound)
           {
               sum += number;
               ++number;
           }
          
       }
       while(number <= upperbound);
   }