Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind Java Scanner useRadix() Method?
Lesson checks
Practice each idea before moving on
Short Mimo-style checks built from this lesson's code, terms, and sequence.
1Quick choice
Which statement best captures the main point of this lesson?
2Fill blank
Complete the missing token from the example code.
// ___ a scanner object Scanner myObj = new Scanner("FFAD01");3Order
Put the learning moves in the order that makes the concept easiest to apply.
The useRadix() method changes the radix used by the scanner.
Definition and Usage
Java Scanner useRadix() Method
❮ Scanner Methods
Read a hexadecimal number
// Create a scanner object Scanner myObj = new Scanner("FFAD01");
// Change radix myObj.useRadix(16);
// Read and display the number System.out.println(myObj.nextInt());Definition and Usage
The useRadix() method changes the radix used by the scanner. The radix specifies how many different symbols can be used to represent each digit in a number. For example, a radix of 16 would allow the symbols 0 to 9 and A to F to be used as digits.
Syntax
public Scanner useRadix(int
radix )Parameter Values
| Parameter | Description |
|---|---|
| radix | Required. An int value specifying the radix that the scanner will use to interpret whole numbers. |
Technical Details
| Returns: | A reference to the Scanner object that this method belongs to, which allows for chaining configuration methods. An example of chaining is myObj.useRadix(16).useDelimiter(","); . |
|---|
❮ Scanner Methods