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Declaring more than one method with the same name but different sets of parameters is called method overloading.;You cannot overload a constructor.;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);The + operator can be used in string concatenation.;A static method can be used even if no objects of the class have been instantiated.;A class or static variable should be used when all objects of a class must use the same copy of the variable.;If packages are used, the package declaration should come directly after any import declarations in a java source file.;The private access modifier can control the access to variables and methods of a class.;An accessor is another term for a set method.;Arrays have to hold the values of the same type.;The first index of an array is index zero.;The following code creates an array, b, with 3 columns and 2 rows;int[][] b = new int[2][3];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;Nested for loops are commonly used to display the contents of 2-dimensional arrays.;The enhanced "for" statement will iterate through the elements of an array.;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;A list of method parameters are separated by semicolons.;A method can return at most one value.;Class Math has several static methods.;The Java Application Programming Interface is a Java class library with thousands of predefined classes.


Paper#71975 | Written in 18-Jul-2015

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