KeyEvent.java

input.addKeyListener(new KeyListener(){
            String loading = " . . . ";
            String kata = "";
            @Override
            public void keyTyped(KeyEvent e) {
//                    char c = e.getKeyChar();
//                    kata = kata.concat(String.valueOf(c));
//                    if(a.isSelected()){
//                        Inggris translate = new Inggris();
//                        output.setText(translate.getMean(kata));
//                    }
//                    if(b.isSelected()){
//                        Indonesia translate = new Indonesia();
//                        output.setText(translate.getMean(kata));
//                    }
            }
            
            @Override
            public void keyPressed(KeyEvent e) {
                if(e.getKeyCode() == KeyEvent.VK_BACK_SPACE)
                {
                    try{
                        kata = kata.substring(0, kata.length()-1);
                        if(a.isSelected()){
                            Inggris translate = new Inggris();
                            output.setText(translate.getMean(kata));
                        }
                        if(b.isSelected()){
                            Indonesia translate = new Indonesia();
                            output.setText(translate.getMean(kata));
                        }
                    } catch (Exception err){
                        System.out.println("by ade: "+  err.getMessage());
                        kata = "";
                    }
                    return;
                }
                
                if(e.getKeyCode() == KeyEvent.VK_ENTER){
                    return;
                }
                
                if(e.getKeyCode() == KeyEvent.VK_ESCAPE)
                {
                    input.setText("");
                    return;
                }
                char c = e.getKeyChar();
                kata = kata.concat(String.valueOf(c));
                if(a.isSelected()){
                    Inggris translate = new Inggris();
                    output.setText(translate.getMean(kata));
                }
                if(b.isSelected()){
                    Indonesia translate = new Indonesia();
                    output.setText(translate.getMean(kata));
                }
                
            }
            
            @Override
            public void keyReleased(KeyEvent e) {
//                    try{
//                        for(int i = 0; i < loading.length(); i++){
//                            Thread.sleep(5);
//                            output.setText(loading.substring(0, i));
//                        }
//                    } catch (InterruptedException z){
//                        System.exit(0);
//                    }
                if("".equalsIgnoreCase(input.getText())){
                    output.setText("Silahkan Masukan Kata");
                }
            }
            
            
            
        });