Java Print M graphics (two-dimensional arrays)--(ix)

A two-dimensional array is used for the combination of graphic and digital graphics output sets. Analyze the Excel table first and find the simple rules. The number of rows in a two-dimensional array is row high and the number of columns is the last number size.

For reducing and then increasing and then increasing, you can use a Boolean flag to increase or decrease the state, minimize its flag to the opposite and change the initial value size.

Effect:

Analysis in Excel

Java code:

1  Packagejava_test;2 3  Public classPrintm {4 5     /*6      7 3 78 2 4 6 89 1 5 9Ten Planar graphs (two-dimensional arrays) One        A      */ -      Public Static voidMain (string[] args) { -          the         intatr[][]=New int[3] [9]; - //generate 9 numbers, put in the corresponding position -         Booleanflag=false;//False indicates that the horizontal axis is decreasing, and true represents increasing - //Initial Position +         intx=2; -         intY=0; +          for(inti=1;i<=9;i++){ A              at //put the first number in a -atr[x][y]=i; - //y is always increasing -y++; -              -             if(!flag) {//if x is reduced to make it self-reducing inx--; -             } to              +             if(flag) { -X + +; the             } *  $             if(x<0) {//x minus 0, minus 1.Panax Notoginsengflag=true; -X=x+2; the             } +              A             if(X&GT;2) {//x plus 2, plus 3. theflag=false; +X=x-2; -             } $         } $          -          -          for(inti=0;i<3;i++){ the              for(intJ =0;j<9;j++){ -                 if(atr[i][j]==0){WuyiSystem.out.print (""); the}Else{ - System.out.print (Atr[i][j]); Wu                 } -             } About System.out.println (); $         } -          -          -          A     } +}

Test:

-------------------------------------------------------the transformation of the input n number output m--------------------------------

1  Packagejava_test;2 3 Importorg.junit.Test;4 5  Public classPrintm_duogeshu {6 7     /*8      * 9 * 3 7 2 4 6 8 1 5 9 Planar graphic (two-dimensional array)Ten      *  One      */ A      Public Static voidTest1 (intnum) { -  -         intHeight = (NUM/4) + 1;//4 sides the  -         intAtr[][] =New int[Height][num]; -         //generate 9 numbers, put in the corresponding position -         BooleanFlag =false;//False indicates that the horizontal axis is decreasing, and true represents increasing +         //Initial Position -         intx = height-1; +         inty = 0; A          for(inti = 1; I <= num; i++) { at  -             //put the first number in a -Atr[x][y] =i; -             //y is always increasing -y++; -  in             if(!flag) {//if x is reduced to make it self-reducing -x--; to             } +  -             if(flag) { theX + +; *             } $ Panax Notoginseng             if(x < 0) {//x minus 0, minus 1. -Flag =true; thex = x + 2; +             } A  the             if(x > Height-1) {//x plus 2, plus 3. +Flag =false; -x = x-2; $             } $         } -  -          for(inti = 0; i < atr.length; i++) { the              for(intj = 0; J < Atr[i].length; J + +) { -                 if(Atr[i][j] = = 0) {WuyiSystem.out.print (""); the}Else { - System.out.print (Atr[i][j]); Wu                 } -             } About System.out.println (); $         } -  -     } -      A @Test +      Public voidTest () { thePrintm_duogeshu.test1 (13); -     } $}

Test:

Java Print M graphics (two-dimensional arrays)--(ix)