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変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
変数の型 - Java 演習
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変数の型 - Java 演習

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  • 1. 2011 10 3
  • 2. 2011 10 3
  • 3. 2011 10 3
  • 4. public class ListEvenNumbers { public static void main(String[] args) { //define limit int limit = 50; System.out.println("Printing Even numbers between 1 and " + limit); // i 1 50 for(int i=1; i <= limit; i++){ // ? ? // P37 if( i % 2 == 0) { System.out.print(i + " "); } } } } /* Output of List Even Numbers Java Example would be Printing Even numbers between 1 and 50 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 */2011 10 3
  • 5. 2011 10 3
  • 6. 0 -> 0000 0000 -> 00 1 -> 0000 0001 -> 01 2 -> 0000 0010 -> 02 3 -> 0000 0011 -> 03 4 -> 0000 0100 -> 04 5 -> 0000 0101 -> 05 6 -> 0000 0110 -> 06 7 -> 0000 0111 -> 07 8 -> 0000 1000 -> 08 9 -> 0000 1001 -> 09 10 -> 0000 1010 -> 0A 11 -> 0000 1011 -> 0B 12 -> 0000 1100 -> 0C 13 -> 0000 1101 -> 0D 14 -> 0000 1110 -> 0E 15 -> 0000 1111 -> 0F 16 -> 0001 0000 -> 102011 10 3
  • 7. 2011 10 3
  • 8. 2011 10 3
  • 9. 2011 10 3
  • 10. 2011 10 3
  • 11. 2011 10 3
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  • 14. public class VariablesSample { public static void main(String[] args) { byte b; short s; int i; long l; char c; float f; double d; b = Byte.MIN_VALUE; s = Short.MIN_VALUE; i = Integer.MIN_VALUE; l = Long.MIN_VALUE; c = (int)Character.MIN_VALUE; f = Float.MIN_VALUE; d = Double.MIN_VALUE; System.out.println(b); System.out.println(s); System.out.println(i); System.out.println(l); System.out.println((int)c); System.out.println(f); System.out.println(d); } }2011 10 3
  • 15. 2011 10 3
  • 16. 2011 10 3
  • 17. public class BooleanSample { public static void main(String[] args) { boolean t = true; boolean f = false; if( t == true ){ System.out.println("t is true!"); }else{ System.out.println("t is false!"); } if( f == true ){ System.out.println("f is true!"); }else{ System.out.println("f is false!"); } boolean isTtrue = ( t == true); System.out.println("(t == true) is " + isTtrue); } }2011 10 3
  • 18. 2011 10 3

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