java编程-数组

曾经终败给现在 2022-03-26 11:16 113阅读 0赞

package day03;
    
    public class TestPractice {
    	public static void main(String[] args) {
    		int [] a = new int[] {1,23,4,5,6,6,7,8,9,10};
    		int sum = 0;
    		for(int i=0;i<a.length;i++) {
    			sum=sum+a[i];
    		}
    		System.out.println(sum);
    		
    	}
    }

打印结果如下：

package day03;
    
    public class TestPractice01 {
    	public static void main(String[] args) {
    		int [] a = {10,11,11111,9,8,7,22222,99,33,66,233};
    		
    		int max = a[0];
    		
    		for(int i=0;i<a.length;i++) {
    			if(a[i]>max) {
    				max = a[i];
    			}			
    		}
    		
    //		for(int i = 0;i<a.length-1;i++) {
    //			if(a[i+1]>a[i]) {
    //				max = a[i+1];
    //			}
    //		}
    		System.out.println(max);
    		
    	}
    }

打印结果如下

22222

package day03;
    
    public class TestPractice02 {
    	public static void main(String[] args) {
    		int [] a = {10,9,8,7,6,5,4,3,2,1};
    		
    		for(int j=0;j<a.length-1;j++) {
    			for(int i=0;i<a.length-1;i++) {
    				if(a[i]>a[i+1]) {
    					int cup =a[i];
    					a[i] = a[i+1];
    					a[i+1]=cup;				
    				}
    			}	
    		}
    		for(int i=0;i<a.length;i++) {
    			System.out.println(a[i]);
    		}			
    	}
    }

打印结果如下

1
    2
    3
    4
    5
    6
    7
    8
    9
    10

package day03;
    
    public class TestPrintArray {
    	public static void main(String[] args) {
    		int [] a = new int[] {3,4,5,5,3,2,3,6,6,6,6,7,7,8,9,1,23,41,32,8,51,3,42,43,131,41,31,34};
    		
    //		int b [];
    //		
    //		for(int i =0;i<a.length;i++) { //数组会有一个默认的属性，长度，就是通过  数组名.length方式来获取
    //			System.out.println(a[i]);
    //		}
    		
    		char [] c = new char[26];
    		for(int i = 0 ;i<26;i++) {
    			c[i]=(char)(i+97);
    			System.out.println(c[i]);			
    		}	
    	}
    }

打印结果如下

a
    b
    c
    d
    e
    f
    g
    h
    i
    j
    k
    l
    m
    n
    o
    p
    q
    r
    s
    t
    u
    v
    w
    x
    y
    z