2 3 Pockets Pockest Java [6] API (Backtracking) 2 [7] [8] [3] i == Pockets 2.1 C3PV web [9] Pockets [10]Pockets 1 3 C

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1 1,a) API Pockets Pockets Investigating the Model of Automatically Detecting Exploratory Programming Behaviors Erina Makihara 1,a) Hiroshi Igaki 2 Norihiro Yoshida 3 Kenji Fujiwara 1 Hajimu Iida 1 1. API [1] [2] [3] [2] [4] 1 Nara Institute of Science and Technology 2 Osaka Institute of Technology 3 Nagoya University a) makihara.erina.lx0@is.naist.jp [5] Pockets Pockets 1

2 3 Pockets 4 4 5 6 2. 2.1 2.2 Pockest 2.3 2.1 Java [6] API (Backtracking) 2 [7] [8] [3] i == 0 2.

2 2 3 Pockets Pockest Java [6] API (Backtracking) 2 [7] [8] [3] i == Pockets 2.1 C3PV web [9] Pockets [10]Pockets 1 3 C3PV SaveCompileRun C3PV SaveCompileRun SaveCompileRun 1 Pockest UI 2

3 (1)ID(2) (3) C3PV Pockets C3PV SaveCompileRun 2.3 Sandberg[3] Myers [2] 1 Pockets Pockets 3. Pockets Pockets if { 1: public class Sample{ 2: public int foobar(){ 3: while(){ 4: int x; 5: 6: int y; 7: 8: 9: int z; 10: 11: 12: 13: void fizzbuzz(){ 14: 15: 2 3

4 if Sample1 foobar2, fizzbuzz13 while3, for7 if8 6 x 2 while Rev.n-1 Rev.n Rev.n Rev.n Pockets Pockets SaveCompileRun (1) (2) 2 Pockets 1 Pockets Save CompileRun 4

5 Rev.n-1 Rev.n Rev.n+1 ソースコードの編集履歴 Rev.n-1 - Rev.n 1 較するソースコード - Rev.n Rev.n+1 2 検変出更す箇る所を <diff> - <diff> - 変更箇所を特定したソースコード 3 トクン化する 4 変更箇所の粒度を調べる 5 変更箇所を含むブロックを全て検出する class,a,{,,for,{,if,(,),{,<diff>,,,, class,a,{,,for,{,if,(,),{,<diff>,,,, トークン化された変更箇所の情報を含むソースコード 6 ブ深ロ度がク最情も報深をい検出する検出される情報変更箇所の位置変更箇所を含むブロックの深度や位置 if if 探索されたブロック情報の作業を次のリビジョン間でう 8 探索されたブロックが致するか較する Pockets TC1 TC2 TC3 TC4 4.1 (a) (a) step 3.2 TC1: 4 (a) (b) step1 4 for 8 step2 5 x step3 6 if 7 TC2: 5 (a) (b) step1 5 foo step2 7 while 9 step3 8 bar 3: while(){ 3: while(){ 4: 4: 5: 5: int x; 6: 6: 7: 7: 8: 8: 9: 9: (a) (b) 4 5

6 TC3: 6 (a) (b) step1 6 System.out.println(y); step2 4 y step3 8 System.out.println(y); TC4: 7 (a) (b) step1 5 fizz step2 6 buzz step3 8 fizzbuzz 3: 3: 4: 4: 5: 5: int foo; 6: 6: 7: 7: while(){ 8: 8: double bar; 9: 9: 10: 10: (a) (b) 5 3: 3: 4: 4: int y 5: 5: 6: 6: System.out.print(y); 7: 7: 8: 8: System.out.print(y); 9: 9: (a) (b) 6 3: 3: 4: 4: 5: 5: int fizz; 6: 6: int buzz; 7: 7: 8: 8: double fizzbuzz; 9: 9: (a) (b) 7 1 TC step step1 2 while TC1 step2 3 for step3 3 for step1 3 if TC2 step2 2 for step3 3 while step1 3 if TC3 step2 2 for step3 2 for step1 3 if TC4 step2 3 if step3 2 if step1 3 step1 step1 5. Pockets

7 TA TA Pockets TA TA 3 for if 6. Pockets Pockets 5.2 Pockets if y if [1] Sheil, B.: Environments for exploratory programming, Datamation, Vol. 29, No. 7, pp (1983). [2] Carnegie Mellon University : Variations to Support Exploratory Programming, [3] Sandberg, D. W.: Smalltalk and exploratory programming, ACM SIGPLAN Notices, Vol. 23, pp (1988). [4] IT 2014 (2014). [5] Vihavainen, A., Luukkainen, M. and Kurhila, J.: Using Students Programming Behavior to Predict Success in an Introductory Mathematics Course, Proc. of EDM, pp (2013). [6] 21 pp (2014). [7] Myers, B. A., Oney, S., Yoon, Y. and Brandt, J.: Creativity Support in Authoring and Backtracking, Proceedings of Workshop on Evaluation Methods for Creativity Support Environments at CHI, pp (2013). [8] Yoon, Y. S. and Myers, B. A.: Supporting Selective Undo in a Code Editor, Proceedings of the 37th International Conference on Software Engineering, pp (2015). [9] 7

8 C3PV Vol. 54, No. 1, pp (2013). [10] Pockets Vol. 57, No. 1, pp (2016). 8

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( ) NAIST-IS-MT1351097 2015 2 5 ( ) API ( ) 41 16, NAIST-IS-MT1351097, 2015 2 5. i Pockets Pockets Pockets 38 35 Pockets Pockets ii A system to support understanding of programming behavior in exploratory