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True/False competency exam: Mark Each Statement either True or False




True/False competency exam: Mark Each Statement either True or False;1. Declaring more than one method with the same name but different sets of parameters is called method overloading.;2. You cannot overload a constructor.;3. Given a method with the signature: public void numberCruncher(int num1, int num2, String name) an example call to this method could be: myNumberCrunch.numberCruncher("Fred", 3, 5);4. The + operator can be used in string concatenation.;5. A static method can be used even if no objects of the class have been instantiated.;6. A class or static variable should be used when all objects of a class must use the same copy of the variable. 7. If packages are used, the package declaration should come directly after any import declarations in a java source file.;8. The private access modifier can control the access to variables and methods of a class.;9. An accessor is another term for a set method.;10. Arrays have to hold the values of the same type.;11. The first index of an array is index zero.;12. The following code creates an array, b, with 3 columns and 2 rows: int[][] b = new int[2][3];13. Given an array called x, you can access the 5th element in array x by the following code: x[5], //reference the 5th element in an array;14. Nested for loops are commonly used to display the contents of 2-dimensional arrays.;15. The enhanced "for" statement will iterate through the elements of an array.;16. Given array ???y??? that holds values of type int, the following code will set the 5th element of the array to 6: Y[6] = 5;17. A list of method parameters are separated by semicolons.;18. A method can return at most one value.;19. Class Math has several static methods.;20. The Java Application Programming Interface is a Java class library with thousands of predefined classes


Paper#67653 | Written in 18-Jul-2015

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