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Im taking a intro to alogorithm design class. I was going over my study sheet for my first exam and just wanted to make sure my answers were correct before I study something that was wrong anyone have any input/suggestions/corrections i’d really appreciate it
Write a statement that declares an integer variable
int hoursWorked = 3 ;
Write a statement that declares a String reference variable
String name = “bob”;
Write a statement that declares a character variable storing an ‘a’
char letter = ‘a’;
Write a statement that declares a String object storing the character sequence “hello friend”.
String greeting = “hello friend” ;
Write a statement that declares a Scanner object that references the standard input stream.
Scanner stdin = newScanner(System.in);
Write a statement that reads an integer from the standard input stream (assuming it has been declared as in the last statement)
int hours = stdin.nextInt();
Write a single Java statement that outputs your first name onto the monitor (standard output stream) and your last name on the following line.
System.out.print(“Susan n Buck”);
Write a Java program to compute and display the product of two integers.
//Author: Susan Buck
public class product {
public static void main(String[]args) {
int A = 2 ;
int B = 3 ;
int calc = A * B ;
System.out.print(“The product of” + A + “and” + B + “is” + calc) ;
}
}
Write a Java program to compute and display the area of a rectangle.
//Author: Susan Buck
public class rectangle {
public static void main (String[]args) {
int topbot = 4 ;
int sides = 2 ;
int area = top * side ;
System.out.print (“The area of a triangle with a top and bottom of” + topbot + “inches, and sides of” + sides + “inches, has an area of” + area) ;
}
}
Write a Java program to compute and display the location of all occurrences of “ssi” in the word Mississippi.
//Author: Susan Buck
public class state
public static void main (String[]args) {
String count = “mississippi” ;
String searchString = “ssi” ;
int n1 = count.indexOf(searchString,1) ;
int n2 = count.indexOf(searchString, n1 + 2) ;
System.out.print(“The letters ssi occurs at positions” + n1 + “and” + n2 + “in the word Mississippi”)
}
}