Tag Archives: java

4,294 views

Unchecked call to add(E) as a member of raw type java.util.List

Posted on October 21, 2017 by J K

// warnning private List list = new ArrayList();   // ok /put type of added object private List<String> list = new ArrayList<String>();

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6,536 views

ArrayList Sublist Join Compare Loop Synchronize HashMap Sort Tree

Posted on February 14, 2017 by J K

Link to tutorial ArrayList Sublist of ArrayList Join two ArrayList Compare ArrayList Initialize ArrayList Loop ArrayList Sort ArrayList Array to ArrayList ArrayList to Array Synchronize ArrayList Serialize ArrayList LinkedList Loop LinkedList Vector ArrayList vs Vector ArrayList vs LinkedList HashMap Loop … Continue reading →

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14,043 views

Difference between logical operators and or Java

Posted on July 27, 2014 by J K

Basic difference remember it!!! if(TRUE && TRUE && TRUE) return TRUE otherwise FALSE if(FALSE || FALSE || FALSE) return FALSE otherwise TRUE Logical operator and && If all conditions/operands is TRUE return TRUE, otherwise return FALSE if( true and true … Continue reading →

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3,296 views

Windows set Environment Variables – Java path

Posted on May 13, 2014 by J K

How set JAVA path to Environment Variables on Windows (7) Select Start menu > Computer > System Properties > Advanced System Settings(properties). Then open Advanced tab > Environment Variables and add a new system variable JAVA_HOME that points to your … Continue reading →

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3,313 views

Java Basic Rules

Posted on October 21, 2013 by J K

// file name MyFirstClass.java   import java.util.*; import java.lang.Math; import java.io.*; import javax.swing.*;   public class MyFirstClass{ // start of program public static void main(String[] args) { // basic function main   // variables and calculation int a=2; int b=3; … Continue reading →

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5,315 views

String Array of Array Java Example

Posted on March 7, 2013 by J K

Set, get string , array of array of strings, Java example code public final static String[][]_arArOfString_1 = { new String[] {"bla","bla","hello world!"}, new String[] {}, new String[] {}, new String[] {}, new String[] {}, new String[] {} }; String sOut … Continue reading →

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3,250 views

Two boolean as one parameter value in function Java

Posted on February 4, 2013 by J K

boolean fc(boolean b) { return b; }// end fc boolean bA = true; boolean bB = true; boolean bC = bA || bB; // true   bA = true; bB = false; bC = bA || bB; // true   … Continue reading →

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4,539 views

Replace graphic accent diacritic Java Function

Posted on January 2, 2013 by J K

Replace diacritic marks: Á Č Ď É Ě Í Ň Ó Ř Š Ť Ú Ů Ý Ž á č ď é ě í ň ó ř š ť ú ů ý ž public String replaceDiacritic (String inputStr) {   … Continue reading →

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3,609 views

goto statement in Java

Posted on December 8, 2012 by J K

You can use for, do while, while cycle for example: public void myFunction(){ for (int i = 0; i < 1; i++) { // some code int c = 10; if(c==10) break; // goto stop; in C++ } // end … Continue reading →

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6,192 views

Date getDate is deprecated Java Android

Posted on December 7, 2012 by J K

Date getDate is deprecated Java Android example code:   long dayInMili = 100000000;   GregorianCalendar calToDay = new GregorianCalendar(); int nD = calToDay.get((Calendar.MILLISECOND)); // +dayInMili; System.out.println(nD);   long lTime = calToDay.getTimeInMillis(); System.out.println(lTime);   Date dtA = new Date(lTime); // today … Continue reading →

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