Histogram foto picture smartphone
Very dark picture, in photo editor black remains black
Very bright picture, in photo editor white will white
Dark picture but the chart is not in black color area - dark shades can be lighten in graphics editor


Very bright picture, in photo editor white will white

Dark picture but the chart is not in black color area - dark shades can be lighten in graphics editor

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Další témata ....(Topics)
// 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;
int c=Integer.parseInt(JOptionPane.showInputDialog(" Put number: ", "1"));
System.out.println("Number is: "+c);
System.out.println(a+" * "+b+" = "+(a*b));
System.out.println("a^3 "+Math.pow(a,b));
//array
int[] array_my=new int[10];
array_my[0]=3;
array_my[1]=5;
System.out.println("Number of elements "+array_my.length+" 1 + 2 element of array "+(array_my[0]+array_my[1]));
//strings
String txt="Quick red fox";
String txt2=JOptionPane.showInputDialog("Write text: ", "word");
System.out.println("Text is: "+txt2);
String[] count_of_word=txt.split(" ");
System.out.println("Length: "+txt.length()+" Count of words "+count_of_word.length);
System.out.println(txt +" -> "+txt.replace("red","brown"));
System.out.println("First 5 chars of string is: "+ txt.substring(0,5));
//for a if
for(int i=0; i<10;i++){
if(i==3)System.out.println("i equal "+i);
}
// file
try {
File soubor=new File("some_file.txt");
if(!soubor.exists()){
System.out.println("File dont exist");
}
else { // utf-8 encoding
BufferedReader in1 = new BufferedReader(new InputStreamReader(new FileInputStream(soubor),"UTF-8"));
BufferedWriter out1 = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("zapis.txt"),"UTF-8"));
String str;
while ((str = in1.readLine())!=null){
System.out.println(str);
out1.write(str+"
");
}
in1.close();
out1.close();
}
} catch(IOException e){System.out.println("Error " + e);}
// dir
File pathName = new File("some_dir");
String[] fileNames = pathName.list();
if(pathName.exists())
System.out.println("Name of first file in "some_dir": "+fileNames[0]);
else System.out.println("dir not exist");
//function
int nResult = calculateMyFc(3,5);
System.out.println("Result of function: "+nResult);
} // end of function main
// new function , you can add to end MyFc = my function
public static int calculateMyFc(int a, int b){
return (a+b);
}
} // end of class of program
If you have to type frequently the same code you can create templates which can be activate via autocomplete with Ctrl + Space.
For example lets assume setOnClickListener body.
To create a template for this select the menu Window->Preferences and Open Java -> Editor -> Templates
[caption id="attachment_1114" align="alignleft" width="300" caption="Eclipse-show-template-proposals"]
[/caption]
[caption id="attachment_1116" align="alignleft" width="300" caption="Eclipse - select your template"]
[/caption]
Quick help in Eclipse editor: select keyword and press Ctrl+1

For example lets assume setOnClickListener body.
To create a template for this select the menu Window->Preferences and Open Java -> Editor -> Templates

Type name of template in Eclipse s editor and pres Ctrl+Space
[caption id="attachment_1114" align="alignleft" width="300" caption="Eclipse-show-template-proposals"]

Select your template from intellisense help and press Enter or double click on selected item.
[caption id="attachment_1116" align="alignleft" width="300" caption="Eclipse - select your template"]

mIdButtonHome.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent browserIntent = new Intent(Intent.ACTION_VIEW,
Uri.parse("//android.okhelp.cz/category/software/"));
startActivity(browserIntent);
}
});
Quick help in Eclipse editor: select keyword and press Ctrl+1

Try set bigger line-height of links and font size for example:
/*in css*/
.links{
line-height: 48px;
font-size: 20px;
background-color: rgb(255,204,0);
}
/* in html page set class of link*/
<a class="links" href="m.mydomen.com/mypage.html">Blah blah mypage</a>
// or in css for all links on page
a {
line-height: 48px;
font-size: 20px;
}
/*html page*/
<a href="m.mydomen.com/mypage.html">Blah blah mypage</a>
Try this source code:
Issue: Immutable bitmap passed to Canvas constructor
Solution: Bitmap myBitmap = BitmapFactory.decodeResource(getResources(),R.drawable.my_image)
.copy(Bitmap.Config.ARGB_8888, true);
Bitmap myBitmap = BitmapFactory.decodeResource(getResources(),R.drawable.my_image)
.copy(Bitmap.Config.ARGB_8888, true);
Canvas c = new Canvas(myBitmap);
// etc. .......
Issue: Immutable bitmap passed to Canvas constructor
Solution: Bitmap myBitmap = BitmapFactory.decodeResource(getResources(),R.drawable.my_image)
.copy(Bitmap.Config.ARGB_8888, true);
Goto in for cycle Java example source code.
MainClass.java
MainClass.java
public class MainClass {
public static void main(String[] arg) {
String[] arrayOfString = {"nothing", "Hello", "people"
, "bye-bye", "hello", "world!", "end" };
OuterLoop: for (int i = 0;i<6; i++) {
for (int j = 0; j < arrayOfString.length; j++) {
if (arrayOfString[j].equals("world!")) {
continue OuterLoop; // as goto from Csharp, or C/C++
}
System.out.println(arrayOfString[j]);
System.out.println(i);
if (i == 1) {
System.out.println("break");
break OuterLoop;
}
}
}
}
}
/*
nothing
0
Hello
0
people
0
bye-bye
0
hello
0
nothing
1
break
*/
Editace: 2017-08-05 13:45:38
Počet článků v kategorii: 396
Url:histogram-foto-picture-smartphone