arrays, two-dimensional arrays

  Simple array, two-bit array                                                     
1  PackageCom.lovo;2 3 ImportJava.util.Scanner;4 5 /**6 * Two-dimensional array7  * 8  * @authorWang Qiwen9  * Ten  */ One  A  Public classD2 { -      Public Static voidMain (string[] args) { -Scanner sc =NewScanner (system.in); the  -String[] names = {"Zhao da", "Money Two", "Magozo", "John Doe", "Friday" }; -String[] Course = {"Language", "maths", "English" }; -         Double[] scores =New Double[5] [3]; +  -          for(inti = 0; i < scores.length; ++i) { +System.out.println ("Please enter" + Names[i] + "score:"); A              for(intj = 0; J < Scores[i].length; ++j) { atSystem.out.print ("\ T" + course[j] + ":"); -SCORES[I][J] =sc.nextdouble (); -             } -         } -  -         DoubleChsum = 0; in         DoubleMasum = 0; -         DoubleEnsum = 0; to  +          for(inti = 0; i < scores.length; ++i) { -             Doublesum = 0; the              for(intj = 0; J < Scores[i].length; ++j) { *Sum + =Scores[i][j]; $                 if(j = = 0) {Panax NotoginsengChsum + =Scores[i][j]; -                 } the                 if(J = = 1) { +Masum + =Scores[i][j]; A                 } the                 if(J = = 2) { +Ensum + =Scores[i][j]; -                 } $             } $System.out.printf (average of "%s:%.2f\n"), names[i], sum -/scores[i].length); -         } the  -System.out.printf ("Average of Language:%.2f\n", Chsum/names.length);WuyiSystem.out.printf ("The average of mathematics is divided into:%.2f\n", Masum/names.length); theSystem.out.printf ("Average English is divided into:%.2f\n", Ensum/names.length); -  Wu sc.close (); -     } About}

Yang Hui Triangle

1  PackageCom.lovo;2 3 /**4 * Yang Hui triangle5  * 6  * @authorWang Qiwen7  * 8  */9  Public classD3 {Ten      Public Static voidMain (string[] args) { One         int[] h =New int[10][]; A  -          for(inti = 0; i < h.length; ++i) { -H[i] =New int[i + 1]; the              for(intj = 0; J < H[i].length; ++j) { -                 if(j = = 0 | | j = =i) { -H[I][J] = 0; -}Else { +H[I][J] = H[i-1][j] + h[i-1][j-1]; -                 } +System.out.print (H[i][j] + "\ T"); A             } at System.out.println (); -         } -     } -}

arrays, two-dimensional arrays