JButtonInSwing

জাভা swing ব্যবহার করে Button তৈরি করা যায় , যেখানে Button এ image Icon থাকবে

Swing is a GUI widget toolkit for Java. It is part of Oracle's Java Foundation Classes (JFC) – an API for providing a graphical user interface (GUI) for Java programs.

বিস্তারিত জানতে

wikipedia

	import javax.swing.*;
	public class ButtonDemo{
	ButtonDemo(){
	JFrame f=new JFrame("Button Example");
	JButton b=new JButton(new ImageIcon("Register.png")); // button with icon
	b.setBounds(100,100,100,50); // button bounds
	f.add(b); //adding button in frame
	f.setSize(300,400); //frame size
	f.setLayout(null);
	f.setVisible(true);
	f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	public static void main(String[] args) {
	new ButtonDemo();
	}
	}

view raw swingButton.java hosted with ❤ by GitHub

এবার দেখবো কিভাবে button এ Tool Tips ব্যবহার করা যায়।

Tool Tips ব্যবহার করার জন্য নিচের সিনট্যাক্স টি লিখতে হবে

button_object.setToolTipText("String_here");

নিচের কোডটি লক্ষ্য করি

	import javax.swing.*;
	public class ButtonDemowithTooltip{
	ButtonDemowithTooltip(){
	JFrame f=new JFrame("Button Example");
	JButton b=new JButton(new ImageIcon("Register.png")); // button with icon
	b.setBounds(100,100,100,50); // button bounds
	b.setToolTipText("Click me after finiising All");
	f.add(b); //adding button in frame
	f.setSize(300,400); //frame size
	f.setLayout(null);
	f.setVisible(true);
	f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	public static void main(String[] args) {
	new ButtonDemowithTooltip();
	}
	}

view raw swingButtonDemowithTooltip.java hosted with ❤ by GitHub

	import java.awt.*;
	import java.awt.event.*;
	class Calculate extends Frame implements ActionListener{
	TextField tf1,tf2;
	Label lbResult,lb;
	Button bt;
	Choice ch;
	List lt;
	CheckboxGroup cg;
	Checkbox cb1,cb2,cb3,cb4;
	Calculate(){
	setTitle("AWT in Java 16-02-17");
	//first text field
	tf1 = new TextField();
	tf1.setBounds(100,100,70,30);
	//secound text field
	tf2 = new TextField();
	tf2.setBounds(250,100,70,30);
	lb = new Label();
	lb.setBounds(350,90,150,30);
	//label as a result
	lbResult = new Label("Result Here");
	lbResult.setBounds(350,120,100,30);
	//choice as add, sub,mul,div
	ch = new Choice();
	ch.setBounds(100,150,60,70);
	ch.addItem("add");
	ch.addItem("sub");
	ch.addItem("mul");
	ch.addItem("div");
	//list as add, sub,mul,div
	lt = new List();
	lt.setBounds(250,150,60,70);
	lt.add("add");
	lt.add("sub");
	lt.add("mul");
	lt.add("div");
	lt.select(0);
	//check box or group as radio button
	cg = new CheckboxGroup();
	cb1 = new Checkbox("add",true,cg);
	cb2 = new Checkbox("sub",false,cg);
	cb3 = new Checkbox("mul",false,cg);
	cb4 = new Checkbox("div",false,cg);
	cb1.setBounds(100,200,60,30);
	cb2.setBounds(100,240,60,30);
	cb3.setBounds(100,280,60,30);
	cb4.setBounds(100,320,60,30);
	bt = new Button("Result");
	bt.setBounds(190,400,100,30);
	bt.addActionListener(this);
	//adding in frame all component
	add(tf1);
	add(tf2);
	add(bt);
	add(lb);
	add(lbResult);
	add(ch);
	add(lt);
	add(cb1);
	add(cb2);
	add(cb3);
	add(cb4);
	setBackground(Color.YELLOW);
	setSize(500,500);
	setLayout(null);
	setVisible(true);
	}
	public void actionPerformed(ActionEvent ae){
	int t1,t2;
	Font f = new Font("Arial",Font.BOLD,16);
	if(ae.getSource() == bt){
	if(tf1.getText().equals("")){
	tf1.setText("0");
	}
	if(tf2.getText().equals("")){
	tf2.setText("0");
	}
	t1 = Integer.parseInt(tf1.getText());
	t2 = Integer.parseInt(tf2.getText());
	if(ch.getSelectedItem().equals("add") && lt.getSelectedItem().equals("add") && cb1.getState()==true){
	lb.setFont(f);
	lb.setText("Adding");
	lbResult.setBackground(Color.GREEN);
	lbResult.setText(Integer.toString(t1+t2));
	}
	else if(ch.getSelectedItem().equals("sub") && lt.getSelectedItem().equals("sub") && cb2.getState()==true){
	lb.setText("Substruction");
	lbResult.setBackground(Color.GREEN);
	lbResult.setText(Integer.toString(t1-t2));
	}
	else if(ch.getSelectedItem().equals("mul") && lt.getSelectedItem().equals("mul") && cb3.getState()==true){
	lb.setText("Multiplication");
	lbResult.setBackground(Color.GREEN);
	lbResult.setText(Integer.toString(t1*t2));
	}
	else if(ch.getSelectedItem().equals("div") && lt.getSelectedItem().equals("div") && cb4.getState()==true){
	lbResult.setBackground(Color.GREEN);
	lb.setText("Divition");
	if(t1 == 0 && t2 == 0){
	lbResult.setText(" Text box 0");
	}else{
	lbResult.setText(Integer.toString(t1/t2));
	}
	}
	else{
	lb.setText("");
	lbResult.setBackground(Color.RED);
	lbResult.setText("Wrong Selected");
	}
	}
	}
	public static void main(String arg[]){
	Calculate calculate = new Calculate();
	}
	}

view raw awt_calculate.java hosted with ❤ by GitHub