Java exercises, a daily Java applet -1...__ Small program
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"Program 11"
Question: There are 1, 2, 3, 4 digits, which can be composed of a number of different and no duplicate number of three digits. is how much.
1. Procedure analysis: Can fill in the hundred, 10 digits, single-digit digits are 1, 2, 3, 4. Make up all the permutations and then remove the arrangement that does not satisfy the condition.
This topic is very simple, do not like the program analysis, the direct traversal of the array can be.
= = = = = = = Main.java = Package Main;
public class Main {public static void main (string[] args) {int array[] = {1, 2, 3, 4}; int I, j, K;
for (i = 0; i < 4; i++) {for (j = 0; J < 4; J +) {if (j = i) {continue;}
for (k = 0; k < 4; k++) {if (k = i) | | (k = = j)) {continue;}
SYSTEM.OUT.PRINTLN (array[i] * + array[j] * + array[k]); } } } } }
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