Java演習(6) -- 条件分岐 --

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なつきすずがみね
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2 (400, 300) 20 if-else

3 (Stripe.java) import javax.swing.japplet; import java.awt.graphics; import java.awt.color; public class Stripe extends JApplet { public void paint(graphics g) { g.setcolor(color.white); g.fillrect(0, 0, 400, 300); if-else } } int i = 0, x = 0, w = 20; 10 g.setcolor(color.black); while(x < 400){ if(i % 2 == 0) g.fillrect(x, 0, w, 300); x += w; i++; } g.drawrect(0, 0, 399, 299);

4 if( ) if-else

5 if( ) if-else

6 if( ) if-else true

7 if( ) if-else true

8 if( ) if-else false

9 if(i % 2 == 0) g.fillrect(x, 0, w, 300); x += w; i++; i % 2 == 0 i (i ) if-else

10 if(i % 2 == 0) g.fillrect(x, 0, w, 300); x += w; i++; i % 2 == 0 i (i ) if-else i % 2 == 0

11 if(i % 2 == 0) g.fillrect(x, 0, w, 300); x += w; i++; i % 2 == 0 i (i ) if-else i % 2 == 0 g.fillrect true(i )

12 if(i % 2 == 0) g.fillrect(x, 0, w, 300); x += w; i++; i % 2 == 0 i (i ) if-else i % 2 == 0 g.fillrect true(i ) x += w; i++;

13 if(i % 2 == 0) g.fillrect(x, 0, w, 300); x += w; i++; i % 2 == 0 i (i ) if-else i % 2 == 0 false(i ) g.fillrect x += w; i++;

14 (400, 300) 20 if-else

15 (400, 300) 20 if-else

16 (Checker.java) import javax.swing.japplet; import java.awt.graphics; import java.awt.color; public class Checker extends JApplet { public void paint(graphics g) { g.setcolor(color.white); g.fillrect(0, 0, 400, 300); } } int j = 0, y = 0, w = 20; 10 g.setcolor(color.black); while(y < 300){ int x = 0, i = 0; while(x < 400){ if((i + j) % 2 == 0) g.fillrect(x, y, w, w); x += w; i++; } y += w; j++; 20 } g.drawrect(0, 0, 399, 299); if-else

17 12-21 j: if-else i: 15 i + j( + ) :

18 (400, 300) 20 if-else

19 if-else

20 10 if-else

21 (CircleBox1.java) import javax.swing.japplet; import java.awt.graphics; public class CircleBox1 extends JApplet { public void paint(graphics g){ int w = 30, sp = 20, y = 20; if-else } } for(int i = 0, x = 20; i < 10; i++, x += (w + sp)){ if(i % 2 == 0) g.drawrect(x, y, w, w); 10 else g.drawarc(x, y, w, w, 0, 360); }

22 if( ) -1 else if-else

23 if( ) -1 else if-else

24 if( ) -1 else if-else true -1-2

25 if( ) -1 else if-else true -1-2

26 if( ) -1 else if-else false -1-2

27 if( ) -1 else if-else false -1-2

28 if(i % 2 == 0) { g.drawrect(); } else { g.drawarc(); } i % 2 == 0 i i if-else

29 if(i % 2 == 0) { g.drawrect(); } else { g.drawarc(); } i % 2 == 0 i i if-else i % 2 == 0

30 if(i % 2 == 0) { g.drawrect(); } else { g.drawarc(); } i % 2 == 0 i i if-else i % 2 == 0 true(i ) drawrect drawarc

31 if(i % 2 == 0) { g.drawrect(); } else { g.drawarc(); } i % 2 == 0 i i if-else i % 2 == 0 true(i ) drawrect drawarc

32 if(i % 2 == 0) { g.drawrect(); } else { g.drawarc(); } i % 2 == 0 i i if-else i % 2 == 0 false(i ) drawrect drawarc

33 if(i % 2 == 0) { g.drawrect(); } else { g.drawarc(); } i % 2 == 0 i i if-else i % 2 == 0 false(i ) drawrect drawarc

34 2 10 (Circle- Box2.java) if-else

35 2 10 if-else

36 10 if-else

37 (CircleBox3.java) import javax.swing.japplet; import java.awt.graphics; public class CircleBox3 extends JApplet { public void paint(graphics g){ int w = 30, sp = 20, y = 20; if-else } } for(int i = 0, x = 20; i < 10; i++, x += (w + sp)){ if(i % 3 == 0) g.drawrect(x, y, w, w); 10 else if(i % 3 == 1) g.drawarc(x, y, w, w, 0, 360); else g.fillrect(x, y, w + 1, w + 1); }

38 if( -1) -1 else if( -2) -2 else if-else

39 if( -1) -1 else if( -2) -2 else if-else -1

40 if( -1) -1 else if( -2) -2 else if-else -1 true

41 if( -1) -1 else if( -2) -2 else if-else -1 true

42 if( -1) -1 else if( -2) -2 else if-else -1 false

43 if( -1) -1 else if( -2) -2 else if-else -1 false -2 true

44 if( -1) -1 else if( -2) -2 else if-else -1 false -2 true

45 if( -1) -1 else if( -2) -2 else if-else -1 false -2 false

46 if( -1) -1 else if( -2) -2 else if-else -1 false -2 false

47 if(i % 3 == 0) { g.drawrect(); } else if(i % 3 == 1) { g.drawarc(); } else { g.fillrect(); } i % 3 == 0 i 3 i % 3 == 1 i 3 +1 if-else

48 if(i % 3 == 0) { g.drawrect(); } else if(i % 3 == 1) { g.drawarc(); } else { g.fillrect(); } i % 3 == 0 i 3 i % 3 == 1 i 3 +1 if-else i % 3 == 0

49 if(i % 3 == 0) { g.drawrect(); } else if(i % 3 == 1) { g.drawarc(); } else { g.fillrect(); } i % 3 == 0 i 3 i % 3 == 1 i 3 +1 if-else i % 3 == 0 true drawrect drawarc fillrect

50 if(i % 3 == 0) { g.drawrect(); } else if(i % 3 == 1) { g.drawarc(); } else { g.fillrect(); } i % 3 == 0 i 3 i % 3 == 1 i 3 +1 if-else i % 3 == 0 true drawrect drawarc fillrect

51 if(i % 3 == 0) { g.drawrect(); } else if(i % 3 == 1) { g.drawarc(); } else { g.fillrect(); } i % 3 == 0 i 3 i % 3 == 1 i 3 +1 if-else i % 3 == 0 false i % 3 == 1 drawrect drawarc fillrect

52 if(i % 3 == 0) { g.drawrect(); } else if(i % 3 == 1) { g.drawarc(); } else { g.fillrect(); } i % 3 == 0 i 3 i % 3 == 1 i 3 +1 if-else i % 3 == 0 false i % 3 == 1 true drawrect drawarc fillrect

53 if(i % 3 == 0) { g.drawrect(); } else if(i % 3 == 1) { g.drawarc(); } else { g.fillrect(); } i % 3 == 0 i 3 i % 3 == 1 i 3 +1 if-else i % 3 == 0 false i % 3 == 1 true drawrect drawarc fillrect

54 if(i % 3 == 0) { g.drawrect(); } else if(i % 3 == 1) { g.drawarc(); } else { g.fillrect(); } i % 3 == 0 i 3 i % 3 == 1 i 3 +1 if-else i % 3 == 0 false i % 3 == 1 false drawrect drawarc fillrect

55 if(i % 3 == 0) { g.drawrect(); } else if(i % 3 == 1) { g.drawarc(); } else { g.fillrect(); } i % 3 == 0 i 3 i % 3 == 1 i 3 +1 if-else i % 3 == 0 false i % 3 == 1 false drawrect drawarc fillrect

56 10 (CircleBox4.java) if-else

57 if-else if-else

58 (Circle- Box5.java) import javax.swing.japplet; import java.awt.graphics; import java.awt.color; public class CircleBox5 extends JApplet { public void paint(graphics g){ int w = 30, sp = 20; if-else for(int j = 0, y = 20; j < 5; j++, y += (w + sp)){ if(j % 2 == 0) g.setcolor(color.red); 10 else g.setcolor(color.black); } for(int i = 0, x = 20; i < 5; i++, x += (w + sp)){ if((i + j) % 2 == 0) g.drawrect(x, y, w, w); else g.drawarc(x, y, w, w, 0, 360); } } } 20

59 if-else

60 (CircleBox6.java) import javax.swing.japplet; import java.awt.graphics; public class CircleBox6 extends JApplet { public void paint(graphics g){ int w = 30, sp = 20; } } for(int j = 0, y = 20; j < 5; j++, y += (w + sp)){ if(j % 2 == 0){ for(int i = 0, x = 20; i < 5; i++, x += (w + sp)){ 10 if(i % 2 == 0) g.drawrect(x, y, w, w); else g.drawarc(x, y, w, w, 0, 360); } } else{ for(int i = 0, x = 20; i < 5; i++, x += (w + sp)){ if(i % 2 == 0) g.fillarc(x, y, w, w, 0, 360); else g.fillrect(x, y, w + 1, w + 1); } } 20 } if-else

61 (CircleBox7.java) if-else

62 (CircleBox8.java) if-else

AWT setcolor, drawstring Java AWT Abstract Window Toolkit Graphics AWT import import java.awt.* ; // AWT Graphics import java.awt.graphics; // AWT Gra

AWT setcolor, drawstring Java AWT Abstract Window Toolkit Graphics AWT import // AWT Graphics import java.awt.graphics; // AWT Graphics paint g x y ( x, y ) drawline( x, y, x, y ) ; g.drawline( 20, 30,