Archive for mars 2015

JAVA - How To Change A JTextField Font Color, Name, Style, And Size In Java

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JAVA - How To Change A JTextField Font Color, Name, Style, And Size In Java

                                                                         


 Source Code:


package JavaDB_001;

import java.awt.Color;

import java.awt.Font;

import javax.swing.*;



public class Project extends JFrame{
    public Project(){
    super("Change JTextField Font Name, Style, Size, Color");
    
    //"Verdana" = font name;
    //Font.BOLD = font style, You Can Also Put An Int;
    // 30 = size;
    Font f = new Font("Verdana",Font.BOLD,30);
    JTextField tf = new JTextField(60);
    //set the font to the JTextField
    tf.setFont(f);
    //change a JTextField font color
    tf.setForeground(Color.red);
    tf.setBounds(80,20,250,50);
    add(tf);
    setLayout(null);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLocationRelativeTo(null);
    setSize(400,200);
    setVisible(true);
    }
    public static void main(String[] args){
        new Project();
    }
   }
///////////////////////OUTPUT:
                    
Jtextfield font color , name,size,style
 Jtextfield font color , name,size,style 
See Also In Jlabel

JAVA - How To Change A Jlabel Font Color, Name, Style, And Size In Java

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JAVA - How To Change A Jlabel Font Color, Name, Style, And Size In Java

                                                                        

 Source Code:

package JavaDB_001;
import java.awt.Color;
import java.awt.Font;
import javax.swing.*;

public class Project extends JFrame{
    JLabel label;
    public Project(){
    super("Change JLabel Font Name, Style, Size, Color");
    label = new JLabel("This Is My Text Here");

    //"TimesRoman" = font name;
    //Font.ITALIC = font style, You Can Also Put An Int;
    // 20 = size;

    Font f = new Font("TimesRoman",Font.BOLD,25);
    //change a jlabel font color
    label.setForeground(Color.red);
  //set the font to the Jlabel 
    label.setFont(f);
    label.setBounds(80,20,250,80);
    
    setLayout(null);
    add(label);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLocationRelativeTo(null);
    setSize(400,200);
    setVisible(true);
    }
    public static void main(String[] args){
        new Project();

        //to know some font style number
        System.out.println(Font.BOLD);
        System.out.println(Font.CENTER_BASELINE);
        System.out.println(Font.HANGING_BASELINE);
        System.out.println(Font.ITALIC);
        System.out.println(Font.LAYOUT_LEFT_TO_RIGHT);
        System.out.println(Font.LAYOUT_NO_LIMIT_CONTEXT);
        System.out.println(Font.LAYOUT_NO_START_CONTEXT);
        System.out.println(Font.LAYOUT_RIGHT_TO_LEFT);
        System.out.println(Font.PLAIN);
        System.out.println(Font.ROMAN_BASELINE);
        System.out.println(Font.TRUETYPE_FONT);
        System.out.println(Font.TYPE1_FONT);
    }
   }
/////////////////////////OUTPUT:

Change A Jlabel Font Color, Name, Style, And Size In Java
Change A Jlabel Font Color, Name, Style, And Size In Java
1
1
2
2
0
4
2
1
0
0
0
1

JAVA - How To Use HashMap In Java With Iterator

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JAVA - How To Use HashMap In Java With Iterator

                                                                                                                                                            
using hashmap with iterator in java
In this java Collection tutorial we will see How To Use A HashMap With Iterator In Java NetBeans

Source Code:

package JavaDB_001;
import java.util.*;


public class Work {
    public static void main(String[] args){
        //create a HashMap
        //Key is String 
        //value is Integer
       HashMap<String,Integer> employer = new HashMap<String,Integer>();
       
       //filling the HashMap with put method
       employer.put("employer 1", 34);
       employer.put("employer 2", 43);
       employer.put("employer 3", 36);
       employer.put("employer 5", 55);
       employer.put("employer 6", 29);
       employer.put("employer 7", 27);
       employer.put("employer 8", 30);
       employer.put("employer 9", 51);
       
       //displaying only the key of the hashmap
       System.out.println("_______Key_______");
         Iterator<String> itName = employer.keySet().iterator();
            while(itName.hasNext())
             System.out.println(itName.next());
       
       //displaying only the value of the hashmap
       System.out.println("_______Value_______");
        Iterator<Integer> itAge = employer.values().iterator();
          while(itAge.hasNext())
            System.out.println(itAge.next());
       
      //displaying the key and the value of the hashmap
       System.out.println("_______Key_And_Value_______");  
         Iterator<String> itname = employer.keySet().iterator();
            while(itname.hasNext()){
                String s = itname.next();
              System.out.println(itname.next()+" -*- "+employer.get(s));
           }
    }
       
}
///////////////////////////OUTPUT:
_______Key_______
employer 9
employer 5
employer 6
employer 7
employer 8
employer 1
employer 2
employer 3
_______Value_______
51
55
29
27
30
34
43
36
_______Key_And_Value_______
employer 9 -*- 51
employer 5 -*- 55
employer 6 -*- 29
employer 7 -*- 27
employer 8 -*- 30
employer 1 -*- 34
employer 2 -*- 43
employer 3 -*- 36
See Also: How To Use HashMap In Java

JAVA - How To Use HashMap In Java

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JAVA - How To Use HashMap In Java NetBeans

                                                                                                                                                            
using hashmap in java
In this java Collection Code we will see How To Use A HashMap In Java NetBeans
With Some Java HashMap Example of Methodes.
1: how to create a HashMap 
2: how to dispaly data from it
3: how to remove an element

4: how to clear all elements from it
and more........

 Source Code:

package JavaDB_001;
import java.util.*;


public class Work {
    public static void main(String[] args){
        //create a HashMap
        //Key is String 
        //value is Integer
       HashMap<String,Integer> employer = new HashMap<String,Integer>();
       
       //filling the HashMap with put method
       employer.put("employer 1", 34);
       employer.put("employer 2", 43);
       employer.put("employer 3", 36);
       employer.put("employer 5", 55);
       employer.put("employer 6", 29);
       employer.put("employer 7", 27);
       employer.put("employer 8", 30);
       employer.put("employer 9", 51);
       
       //displaying only the key of the hashmap
       Set<String> EmployerName = employer.keySet();
       System.out.println("_______Key_______");
       for(String s: EmployerName)
           System.out.println(s);
       
       //displaying only the value of the hashmap
       Collection<Integer> Age = employer.values();
       System.out.println("_______Value_______");
       for(Integer i : Age)
           System.out.println(i);
       
      //displaying the key and the value of the hashmap
       System.out.println("_______Key_And_Value_______");
      Set<String> EmpName = employer.keySet();
       for(String s: EmpName)
           System.out.println("Key => ["+s +"] Value => ["+employer.get(s)+"]");
    }
       
}
///////////////////////////OUTPUT:
_______Key_______
employer 9
employer 5
employer 6
employer 7
employer 8
employer 1
employer 2
employer 3
_______Value_______
51
55
29
27
30
34
43
36
_______Key_And_Value_______
Key => [employer 9] Value => [51]
Key => [employer 5] Value => [55]
Key => [employer 6] Value => [29]
Key => [employer 7] Value => [27]
Key => [employer 8] Value => [30]
Key => [employer 1] Value => [34]
Key => [employer 2] Value => [43]
Key => [employer 3] Value => [36]
Another Source Code:

 package javaapp;

 import java.util.ArrayList;
import java.util.HashMap;
public class Work {
    public static void main(String[] args){
        HashMap<Integer, String> map = new HashMap<Integer, String>();
        map.put(10, "A");
        map.put(20, "B");
        map.put(30, "C");
        map.put(40, "D");
        map.put(50, "E");
        map.put(60, "F");
        
        printData(map);
        
        // delete an elemnt from the hashmap
        map.remove(60);
        printData(map);
        System.out.println("");
        System.out.println(map);
        
        map.replace(10, "Z");
        System.out.println(map);
        
        // see if the map contains a value
        boolean statVal = map.containsValue("Z");
        System.out.println(statVal);
        
        // see if the map contains a key
        boolean statKey = map.containsKey(40);
        System.out.println(statKey);
        
        // get value using his key
        String val = map.get(100);
        System.out.println(val);
        
        // check if the map is empty
        boolean isEmpty = map.isEmpty();
        System.out.println(isEmpty);

         // insert tvalues from hashmap to arraylist
        ArrayList<String> values = new ArrayList<String>(map.values());
        System.out.println("Values: "+values); 
        
        // create another hashmap
        HashMap<Integer, String> map2 = new HashMap<Integer, String>();
        map2.put(100,"MAP2-1");
        map2.put(200,"MAP2-2");
        map2.put(300,"MAP2-3");
        
        // insert a map in another map
        map.putAll(map2);
        printData(map);
        
       // clone the hashmap 
       Object obj = map.clone();
       System.out.println(obj);
       
       /*
       If the specified key is not associated with a value
       or the value is null associates it with the given value 
       in this example the key is 111 and value is null
       */
       map.put(111, null);
       map.putIfAbsent(111, "NewValue");
       System.out.println(map);
       
        // get the HashMap Size
        int mapSize = map.size();
        System.out.println(mapSize);
        
        // clear all elements from the hashmap
        map.clear();
        mapSize = map.size();
        System.out.println(mapSize);
        System.out.println("The HashMap Is Clear: "+map);
        System.out.println("The HashMap is Empty Now = "+map.isEmpty());
        
    }
    
    // cretate a function to print data from the hashmap 
    public static void printData(HashMap<Integer,String> list){
        for(Integer i : list.keySet()){
            System.out.println("Key: "+i+" Value: "+list.get(i));
        }
        System.out.println("-----------------------");
    }
}

 //OUTPUT:

 Key: 50 Value: E
Key: 20 Value: B
Key: 40 Value: D
Key: 10 Value: A
Key: 60 Value: F
Key: 30 Value: C
-----------------------
Key: 50 Value: E
Key: 20 Value: B
Key: 40 Value: D
Key: 10 Value: A
Key: 30 Value: C
-----------------------

{50=E, 20=B, 40=D, 10=A, 30=C}
{50=E, 20=B, 40=D, 10=Z, 30=C}
true
true
null
false
Values: [E, B, D, Z, C]
Key: 50 Value: E
Key: 20 Value: B
Key: 100 Value: MAP2-1
Key: 40 Value: D
Key: 200 Value: MAP2-2
Key: 10 Value: Z
Key: 300 Value: MAP2-3
Key: 30 Value: C
-----------------------
{50=E, 20=B, 100=MAP2-1, 40=D, 200=MAP2-2, 10=Z, 300=MAP2-3, 30=C}
{50=E, 20=B, 100=MAP2-1, 40=D, 200=MAP2-2, 10=Z, 300=MAP2-3, 30=C, 111=NewValue}
9
0
The HashMap Is Clear: {}

The HashMap is Empty Now = true

See Also : HashMap In Java With Iterator


JAVA - How To Remove All Objects In An Arraylist That Exist In Another Arraylist

JAVA - How To Remove All Objects In An Arraylist That Exist In Another Arraylist

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JAVA - How To Remove All Objects In An Arraylist If Exist In Another Arraylist

_________________________________________________________________________

 In this java Collection Tutorial we will see How To Delete All Elements from ArrayList
If Elements Exist In Another ArrayList In Java NetBeans .

 Source Code:

package javadb_001;
import java.util.ArrayList;
import java.util.List;
public class Learn {
    
public static void main(String[] args){
    String[] str1 = {"C#","JAVA","Android","ASP.NET","J2EE","PHP"};
 List<String> list = new ArrayList<String>(); 
 //fill the list
 for(String s1 : str1){
     list.add(s1);
     }
     String[] str2 = {"C","C++","JAVA","DELPHY","HTML","CSS","C#"};
     List<String> list2 = new ArrayList<String>();
     
     //fill the list2
     for(String s2 : str2){
         list2.add(s2);
     }
     
    //display the list2 Objects before removing existing objects
     for(String s : list2){
         System.out.println(s);
     }
      System.out.println("____________________");
      
     for(int i = 0; i < list.size(); i++){
         for(int j = 0; j < list2.size(); j++)
         {
             if(list.get(i).equals(list2.get(j))){
                 list2.remove(j);
             }
         }
     }
     
     //display the list2 Objects after removing existing objects
     for(String s : list2){
         System.out.println(s);
     }
}
}


JAVA - How To Use setActionCommand In Java Swing

JAVA - How To Use setActionCommand In Java Swing

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Using setActionCommand In Java NetBeans

_______________________________________________________________________________

In this java Collection Tutorial we will see How To Use setActionCommand With Button
 In Java NetBeans .

 Source Code:
package JavaDB_001;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;



public class Project extends JFrame {
    JButton btnOK,btnYES,btnNO;
    
public Project(){
    btnOK = new JButton("OK");
    btnYES = new JButton("YES");
    btnNO = new JButton("NO");
    
    btnOK.setActionCommand("OK");
    btnYES.setActionCommand("YES");
    btnNO.setActionCommand("NO");
    
    btnOK.addActionListener(new BtnAction());
    btnYES.addActionListener(new BtnAction());
    btnNO.addActionListener(new BtnAction());
    
    btnOK.setBounds(20, 20, 100, 20);
    btnYES.setBounds(140, 20, 100, 20);
    btnNO.setBounds(260, 20, 100, 20);
    
    add(btnOK);
    add(btnYES);
    add(btnNO);
    
    setLayout(null);
    setSize(400, 120);
    setLocationRelativeTo(null);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    getContentPane().setBackground(Color.decode("#bdb76b"));
    setVisible(true);
}

public class BtnAction implements ActionListener{
    public void actionPerformed(ActionEvent e){
        String s = e.getActionCommand();
        if(s.equals("OK")){
          JOptionPane.showMessageDialog(null, "CLICK OK");
        }
        if(s.equals("YES")){
            JOptionPane.showMessageDialog(null, "CLICK YES");
        }
        if(s.equals("NO")){
            JOptionPane.showMessageDialog(null, "CLICK NO");
        }
    }
    }
public static void main(String[] args){
  new Project();
}
}

JAVA - How To Use JCheckBox In Java Swing

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How To Use JCheckBox In Java NetBeans

_______________________________________________________________________________

package JavaDB_001;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;


public class Project extends JFrame {

    //declare JCheckBox Object
    JCheckBox ch;

public Project(){
     ch = new JCheckBox("CheckBox");
    //add Action to ch
    ch.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            //if JCheckBox is selected
          if(ch.isSelected()){
              JOptionPane.showMessageDialog(null, "Checked");
          }
         // if JCheckBox is not selected
          else
              JOptionPane.showMessageDialog(null, "UnChecked");
        }
    });
    ch.setBounds(160, 30, 90, 20);
    add(ch);
    setLayout(null);
    setSize(400, 120);
    setLocationRelativeTo(null);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    getContentPane().setBackground(Color.decode("#bdb76b"));
    setVisible(true);
}
public static void main(String[] args) throws IOException{
  new Project();
}
}

JCheckBox In Java
JCheckBox In JFrame

How To Make Money With Your Source Code

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How To Make Money With Your Source Code

________________________________________________________________________________

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