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2 Visit us at Full Curriculum Solutions M/C Review Question Banks Live Programming Problems Tons of great content!
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4 import java.util.scanner; Try to be as specific as possible when using an import.
5 reference variable Scanner keyboard = new Scanner(System.in); object instantiation
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7 Scanner frequently used methods Name nextint() nextdouble() nextfloat() nextlong() nextbyte() nextshort() next() nextline() Use returns the next int value returns the next double value returns the next float value returns the next long value returns the next byte value returns the next short value returns the next one word String returns the next multi word String import java.util.scanner;
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9 Scanner keyboard = new Scanner(System.in); out.print("enter an integer :: "); int num = keyboard.nextint();
10 out.print("enter an integer :: "); int num = keyboard.nextint(); out.println(num); INPUT 931 OUTPUT Enter an integer ::
11 reference variable int num = keyboard.nextint(); method call
12 out.print("enter an integer :: "); Prompts are used to tell the user what you want.
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15 Scanner keyboard = new Scanner(System.in); out.print("enter a double :: "); double num = keyboard.nextdouble();
16 out.print("enter a double :: "); double num = keyboard.nextdouble(); out.println(num); INPUT OUTPUT Enter a double ::
17 reference variable double num = keyboard.nextdouble(); method call
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19 Visit us at Full Curriculum Solutions M/C Review Question Banks Live Programming Problems Tons of great content!
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21 Visit us at Full Curriculum Solutions M/C Review Question Banks Live Programming Problems Tons of great content!
22 Scanner keyboard = new Scanner(System.in); out.print("enter a string :: "); String word = keyboard.next();
23 out.print("enter a string :: "); String word = keyboard.next(); out.println(word); INPUT I love java. OUTPUT Enter a string :: I love java. I
24 Scanner keyboard = new Scanner(System.in); out.print("enter a sentence :: "); String sentence = keyboard.nextline();
25 out.print("enter a line :: "); String line = keyboard.nextline(); out.println(line); INPUT I love java. OUTPUT Enter a line :: I love java. I love java.
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28 out.print("enter an integer :: "); int num = keyboard.nextint(); out.print("enter a sentence :: "); String sentence = keyboard.nextline(); out.println(num + " "+sentence); OUTPUT Enter an integer :: 34 Enter a sentence :: 34 INPUT 34 picks up \n nextline() picks up whitespace.
29 out.print("enter an integer :: "); int num = keyboard.nextint(); keyboard.nextline(); out.print("enter a sentence :: "); String sentence = keyboard.nextline(); out.println(num + " "+sentence); OUTPUT Enter an integer :: 34 Enter a sentence :: picks up \n 34 picks up \n //pick up whitespace INPUT 34 picks up \n nextline() picks up whitespace.
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31 Scanner keyboard = new Scanner(System.in); INPUT out.println(keyboard.nextint()); out.println(keyboard.nextint()); out.println(keyboard.nextint()); OUTPUT 1 2 3
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35 Visit us at Full Curriculum Solutions M/C Review Question Banks Live Programming Problems Tons of great content!
A+ Computer Science -
import java.util.scanner; or just import java.util.*; reference variable Scanner keyboard = new Scanner(System.in); object instantiation Scanner frequently used methods Name nextint() nextdouble() nextfloat()
More informationA+ Computer Science -
Visit us at www.apluscompsci.com Full Curriculum Solutions M/C Review Question Banks Live Programming Problems Tons of great content! www.facebook.com/apluscomputerscience Scanner kb = new Scanner(System.in);
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