The examination to test this, I not turn a great god

CodePudding user response:

 import org. Springframework. Util. StringUtils; 

Import the Java. Util. Arrays; 
Import the Java. Util. Random; 
Public class MainTest {

Public static void main (String [] args) {
String STR=new String [] [100]. 
StringBuffer buffer=new StringBuffer (100); 
for (int i=0; i STR [I]=randomString (1); 
Buffer. Append (STR [I]); 
} 
System. The out. Println (buffer); 
Int count=method1 (buffer. The toString (), "123"); 
System. The out. Println (" 123 the number of the substring is: "+ count); 

} 

/* * 
* statistical repeat number 
* @ param buffer 
* @ param a 
* @ return 
*/
Public static int method1 (String buffer, String a) {
Int len=buffer. The length () - buffer. The replace (a, ""). The length (); 
Return len/a. ength (); 
} 

/* * 
* generated random number 
* @ param a 
* @ return 
*/
Public static String randomString (int a) {
Cs=new char char [] [a]; 
String pool=""; 
For (short I='0'. i <='9'; I++) {
The pool=pool + (char) I; 
} 
For (int h=0; H & lt; Cs. Length; H++) {
Int index=(int) (Math. The random () * pool in length ());//create a random number in the range of the pool 
Cs=[h] pool. The charAt (index);//returns the specified index in the characters 
} 
Strings str1=new String (cs); 
Return the str1; 
} 
} 

CodePudding user response:

Thank you, bosses