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ch03Sections1-5 - 3.19 Exercises Problems and Projects...

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3.19 Exercises, Problems and Projects 3.19.1 Multiple Choice Exercises 1. import 2. true 3. true 4. new 5. false 6. a class method 7. it is a class method 8. Quiz.foo( ); 9. 3 10. double 11. false 12. Char 13. Math.E; 3.19.2 Reading and Understanding Code 14. HI 15. ABCDEFGHIJ 16. hello 17. 5 18. 2.0 19. 3.141592653589793 20. 6 21. 4 22. 8 23. 8.0 3.19.3 Fill in the Code 24. System.out.println( s1 + s2 + s3 ); 25. System.out.println( s.length( ) ); 26. // code below assumes we have imported Scanner Scanner scan = new Scanner( System.in ); System.out.print( "Enter a word > " ); String word = scan.next( ); System.out.println( "You entered " + word ); System.out.println( word + " contains " + word.length( ) + " characters" ); 27. System.out.println( s1 + s2 + s3 + s4 ); 28. System.out.print( "Welcome " ); System.out.print( "to " ); System.out.print( "Java " ); System.out.print( "Illuminated" ); AF_CH03 Page 1
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29. int max = Math.max( 3, 5 ); System.out.println( "The max of 3 and 5 is " + max ); 30. double sqRoot = Math.sqrt( d ); System.out.println( "The square root of " + d + " is " + sqRoot ); 31. // code below assumes we have imported Scanner Scanner scan = new Scanner( System.in ); System.out.print( "Enter two integers > " ); int i = scan.nextInt( );
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