Java Tour (17)--stringbuffer Overview, store, delete, get, modify, invert, store buffer data into an array, StringBuilder
After we finish the string, let's talk about his little brother.
I. StringBuffer overview
What does buffer mean about the object of StringBuffer? The meaning of the buffer, string once initialized can not be changed, and StringBuffer is possible, which is the diffe
Casual race1th name 100000 le beans2nd Name 8 0000 le beans3rd Name 5 0000 le beans4th Name 3 0000 le beans5th Name 1 0000 le beans第6-10 Name 5 the le beans第11-30 name le beans
17-Point Lucky Race1th name 100000 le beans2nd Name 8 0000 le beans3rd Name 5 0000 le beans4th Name 3 0000 le beans5th Name 1 0000 le beans第6-10 Name 5 the le beans第11-30 name le beans
Point $10 call-out 1th name 1200 lottery 2nd name 400 lottery ticket 3rd na
(). Findaction (Someinput). dosomething (); Because no empty object is returned in any case, you can safely invoke the action's method after you get the action through findaction.Other answers featured:
If you want to use the equal method, use object
Java8 or Guava Lib, which provides the optional class, which is an element container through which to encapsulate objects, you can reduce the space penalty. But the amount of code is still
Interview tour in Shenzhen-there was still a company that did not get an offer or Shenzhen offer
Let me talk about my personal introduction. One year of experience, one project for three people. I have interviewed five students and graduated from three years of education this year.
It's hard to find a job at the end of the year, and it's hard to find a job. Every day, it's either on a bus or on a subway. V
, so we can rest assured that we will leave.Notes for a warm tour around the world:1. When the warm dress meets the requirements, S is not A. If the hair and shoes are more than four stars, S is selected; otherwise, A is selected.2. However, there are a lot of unexpected situations according to the physical strength tests at on the third day of the landlord.3. When the skirt is too long to block the shoes, even if the hair is higher than four stars, i
of the transformation, the following to demonstrate the results of the changes, we need an apk to do the test, we randomly get an apk, because here do not want to write a project script, Then replace the system's Proguard.jar tool with our modified Proguard.jar. So just get the Classes.dex file in the APK and convert it to a Classes.jar file. Then put it directly into the Proguard project to run .Iv. runni
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