Java Novice Note 6

1. Calculate the number of days

/* Given one month day, the calculation is the first day of the year (e.g. input: 2 15 Result: 46th day) */public class Demo1 {public static void main (string[] args) {int year = 2012;int Mont H = 12;int Day = 31;int total = 0;//cumulative days/*switch (month-1) {//0-11case 0:total = day;break;case 1:total = + day;br Eak;case 2:total = + + Day;break;case 3:total = + + + + Day;break;}  Switch (month-1) {//0-11case 11:total + 30;case 10:total + 31;case 9:total + 30;case 8:total + = 31;case 7:total + = 31;case 6:total + 30;case 5:total + 31;case 4:total + 30;case 3:total + = 31;case 2:total + 28;case 1:total + = 31;case 0:total + = day;} *///array int[] A = {0,31,28,31,30,31,30,31,31,30,31,30,31};for (int i = 0; i < month; i++) {total              + = A[i];} Total + = day;//judgment Leap Year if (year% = = 0 | | year% 4 = = 0 && year%! = 0) {if (Month > 2)    total++;} SYSTEM.OUT.PRINTLN ("total =" + total);}}

2. Monkeys Eat Peach

/* Monkey eat peach problem. The monkey picked a few peaches on the first day, ate half of it immediately, and ate one more. The next morning he ate half of the remaining peaches and ate one more. Every morning after eating the rest of the day half of the zero one. By the 10th morning when I wanted to eat again, there was only one peach left. The first day to pick how many peach length of 10 int array, put 10 random number, output maximum, minimum number */public class Demo2 {public static void main (string[] args) {/*int total = 1;  2  -1for (int i = ten; i > 1; i--) {   total = (all + 1) * 2;//The number of peaches the day before}system.out.println ("total =" + total); */int[] A = {5,2,4,6,9,0,3,11,7,8};int max, Min;max = a[0];        min = a[0];for (int i = 1; i < a.length; i++) {            if (Max < a[i]) {                max = a[i]; System.out.println ("Max ===>" + max);} if (min > A[i]) {min = A[i];}} System.out.println ("max =" + max); System.out.println ("min =" + min);}}

3. Printing

/*6   1   2   3   4 6 1 2 3 5   6   1 2   +   4   5   6   1   3   4   5 6 each   2 3 4   5   6*/public  Class Demo3 {public static void main (string[] args) {int[] a = {1,2,3,4,5,6};int k = 5;for (int i = 0; i < a.length; i++) {for           (int j = 0; J < A.length; J + +) {               System.out.print (A[k] + "  ");   k++;   if (k = = 6) {                   k = 0;   }   }           System.out.println ();   K--;//A the index of the array back one position}}}

Java Novice Note 6