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];}}}}return maxlen;} Output of the eldest child string The code is as follows Copy Code public static string Longestsubstring (String str1, String str2) {StringBuilder sb = new StringBuilder ();if (str1 = null | | str1.isempty () | | | str2 = NULL | | str2.isempty ())Return ""; Ignore caseSTR1 = Str1.tolowercase ();STR2 = Str2.tolowercase ();
This is actually a last year's school recruit I met an Alibaba pen question (admits a little long time-. --Well, if I remember correctly, it was a big question in the Java direction. Of course, the question is not so straightforward, the topic only requires you to write the program after the operation of all System.out.println output results, where the program is the topic to, and the different execution order of each System.out.println will result in
simpledateformat ("HH: mm: SS") ;}// customer class, representing various customers public class customer {private string name; // customer type 2, 1, 3 sub-table representatives, fast, VIP, common customer private int type; private partition list These hundreds of lines actually caused Stack Overflow during JS coloring and parsing. IE6 is not good... I like to write a single-class single file for something I want to learn and test. This facilitates copying, pasting, and directly compiling. Th
In Java, the string "ABCD" is the same length as the string "ab Hello", and is four characters.But the corresponding number of bytes is different, one Chinese character occupies two bytes.Defines a method that takes a substring by the specified number of bytes.For example: for "ab Hello", if take three bytes, then the substring is AB and "You" word half, then half will abandon. If you take four bytes is "ab You", take Five bytes or "Ab you." The above
58. Basic concepts of threads, basic states of threads, and relations between StatesA thread refers to an execution unit that can execute program code during program execution. Each program has at least one thread, that is, the program itself.Java threads have four states: running, ready, suspended, and ended. 59. Common JSP commandsIsErrorPage (whether the Exception object can be used), isELIgnored (whether to ignore the expression) 60. Under what ci
1. Which of the following statements about class A {A () {}} Class B extends a {} are true? A. class B constructor should be public. b. class B constructor should have no parameter C. class B constructors should call this (). d. class B constructors should call Super (). answer: BD resolution: the modifier of the default constructor is only related to the modifier of the current class. For example, if B is public, the default constructor is public. If B is the default access permission, the cons
4 , indicating the running result of the following program. Class A {static {System.out.print ("1");}Public A () {System.out.print ("2");}}Class B extends a{static {System.out.print ("a");}Public B () {System.out.print ("B");}}public class Hello {public static void Main (string[] args) {A ab = new B ();AB = new B ();}}A: Execution result: 1a2b2b. When you create an object, the constructor is called in the order that it initializes the static member, then calls the parent class constructor, initi
Code reviews are one of the most important ways to eliminate bugs, which are especially effective in most cases. Because the code review itself targets objects, it is to overlook the problems and bugs of the entire code in the test process. In addition, code
Review the eleven Common Errors of Java code-Linux general technology-Linux programming and kernel information. The following is a detailed description. Code reviews are one of the most important ways to eliminate bugs, which are especially effective in most cases. Because the code
"089-gray Code (Gray code)""leetcode-Interview algorithm classic-java Implementation" "All topics Directory Index"Original QuestionThe gray code is a binary numeral system where the successive values are differ in only one bit.Given a non-negative integer n representing the
"The total directory of Bowen >>>" Leetcode algorithm title Leetcode is a very useful site to prepare for the interview, is very worthwhile to go to the place, which are some of the classic face questions, these topics in the Google,microsoft,facebook,yahoo and other large Internet companies interview questions have
Code review is one of the most important ways to eliminate bugs, and these reviews are particularly effective most of the time. Because the code review itself is aimed at the object, is to overlook the entire code in the testing process of problems and bugs. Also,
useful in situations where you do not need to instantiate a class."2" Construction code blockIn the class:Format: {Construct code block execution statement}Function: initializes all objects.Note what time: 1. Every time you create an object, he will execute it.2. Construction code is faster than constructor execution.3. The difference between building blocks and
Java basic interview question: there is a return statement in try {}, so will the code in finally {} following this try be executed? When will the code be executed, before or after return ?, Package com. swift; public class Try_Catch_Finally_Test {public static void main (String [] args) {/** try {} contains a return s
PackageCom.swift;Importjava.util.ArrayList;Importjava.util.Collections;Importjava.util.List; Public classArray_reverse { Public Static voidMain (string[] args) {/** with array a[n], the order of the array elements is reversed in Java code*/ inta[]={11,8,2,24,90,23}; //First, you can reverse the array elements by using the Set methodListNewArraylist(); for(Integer i:a) {list.add (i); } collect
scannerInstalling the Sonarqube plugin plugin System Management - plug-in management, optional plug-in->sonarqube plugin click to installinstalling Sonarqube Scanner System Management ->sonarqube scanner configuration link SonarQube System Management-system settings-SonarQube servers Log on to Sonarqube Web side, find Administrator login-administrator-"security-" User Start creating a project test Create a maven project named Test_scan_sonar I put the
1 /**2 * Test of code block execution order3 * Execute sequential Static code block >MAIN code block > Construct code block > Constructor > Normal code block4 * @authorAdministrator5 * 6 */7 Public classClassDemo01 {8 Static {9System.out.println ("This is a static
Novice programmers always encounter this problem, code block static code block construction method Execution orderParent classpublic class Classsup {Public Classsup () {System.out.println ("Parent class constructor");}static {System.out.println ("Parent class static code block");}{SYSTEM.OUT.PRINTLN ("Parent code block
are: 40Lilang99 account balance: 1040LILANG100 withdrawals are: 50lilang100 account balance: 990LILANG100 withdrawals are: 40lilang100 account balance: 950LILANG101 withdrawals are: 50LILANG101 account balance: 900LILANG101 withdrawals are: 40lilang101 account balance: 860LILANG102 withdrawals are: 50lilang102 account balance: 810LILANG102 withdrawals are: 40lilang102 account Balance: 770LILANG103 withdrawals are: 50lilang103 Account balance: 720LILANG103 withdrawals are: 40lilang103 account ba
"204-count Primes (statistic prime numbers)" " leetcode-interview algorithm classic-java Implementation" "All topic Directory Index" code Download "Https://github.com/Wang-Jun-Chao" Original title Description:Count the number of prime numbers less than a non-negative number, N.The main effect of the topic Counts the number of primes less than the nonnegative
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