Java深入浅出数组的定义与使用下篇

   public static boolean isUp(int[] array){
        for (int i = 0; i <array.length-1 ; i++) {
            if(array[i]>array[i+1]){
                return false;
            }
        }
        return true;
    }
 
    public static void main(String[] args) {
        int[] array = {12,13,14,15,16,17,18};
        System.out.println(isUp(array));
 
    }
}

public class TestDemo {
    public static void bubbleSort(int[] array){
        for (int i = 0; i <array.length-1 ; i++) {
            boolean flg = false;
            for (int j = 0; j <array.length-1-i ; j++) {
                if(array[j]>array[j+1]){
                    int tmp = array[j];
                    array[j] = array[j+1];
                    array[j+1]= tmp;
                    flg = true;
                }
            }
            if(flg = false){
                return;
            }
 
        }
    }
    public static void main(String[] args) {
        int[] array = {12,1,23,15,16,13,17};
        bubbleSort(array);
        System.out.println(Arrays.toString(array));
 
 
    }
}

    public static void func(int[] array){
        int i = 0;
        int j = array.length - 1;
        while(i <j){
            while(i < j && array[i] % 2 == 0){
                i++;
            }
            while (i < j && array[j] % 2 != 0){
                j--;
            }
            int tmp = array[i];
            array[i] = array[j];
            array[j] = tmp;
        }
    }
 
    public static void main(String[] args) {
        int[] array = {1,4,3,6,8,5,9};
        func(array);
        System.out.println(Arrays.toString(array));
    }

  把一个数组的值拷贝到另一个数组
 public static int[] copyArray(int[] array){
        int[] copy = new int[array.length];
        for (int i = 0; i <array.length ; i++) {
            copy[i] = array[i];
        }
        return copy;
    }
 
    public static void main(String[] args) {
        int[] array = {1,4,6,3,8,9};
        int[] ret = copyArray(array);
        System.out.println(Arrays.toString(ret));
 
 
    }