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Consider the following code segment. int val = 1;while (val

What is the primary purpose of using libraries and APIs?

Determine if the following evaluates to true or false based on the value of these variables:   int a = 0;int b = 1;   (a != b);

Consider the following code segment. int num = 2574;int result = 0;while (num > 0){ result = result* 10 + num % 10; num /= 10;}System.out.println(result); What is printed as a result of executing the code segment?

Consider the following code segment. for (int r = 3; r > 0; r–){ int c; for (c = 1; c < r; c++) { System.out.print("-"); } for (c = r; c

Consider the following code segment. int a = 10;int b = 5 * 2;System.out.print(a == b); What is printed as a result of executing the code segment?

Consider the following method.   public void doSomething(){ System.out.println(“Something has been done”);}   Each of the following statements appears in a method in the same class as doSomething. Which of the following statements are valid uses of the method doSomething ?   I. doSomething(); II. String output = doSomething(); III. System.out.println(doSomething());

Consider the following code segment. int counter = 0;for (int x = 10; x > 0; x–){ for (int y = x; y

The Student class has been defined to store and manipulate grades for an individual student. The following methods have been defined for the class.   /* Returns the sum of all of the student’s grades */ public double sumOfGrades(){ /* implementation not shown */ }/* Returns the total number of grades the student has received */ public int numberOfGrades(){ /* implementation not shown */ }/* Returns the lowest grade the student has received */ public double lowestGrade(){ /* implementation not shown */ }   Which of the following statements, if located in a method in the Student class, will determine the average of all of the student’s grades except for the lowest grade and store the result in the double variable newAverage ?

Consider the following code segment. int count = 0;for (int x = 1; x