Java - jTextField solo numeros y punto (.)

private void campo4KeyTyped(java.awt.event.KeyEvent evt) {

	char c=evt.getKeyChar();

	if(Character.isLetter(c)) {

		getToolkit().beep();

		evt.consume();

	}  // TODO add your handling code here:

}

private void jTextField1KeyReleased(java.awt.event.KeyEvent evt) {

     String [] v = {"0","1","2","3","4","5","6","7","8","9","."};

     char c =evt.getKeyChar();

     String s = "%" + c ;

      s=s.replace("%", "");

     if (s.equals(v[0])||s.equals(v[1])||s.equals(v[2])||s.equals(v[3])||s.equals(v[4])||s.equals(v[5])){}

     else  if (s.equals(v[6])||s.equals(v[7])||s.equals(v[8])||s.equals(v[9])||s.equals(v[10])){}

     else{

         int k = jTextField1.getText().length()-1;

         String n = jTextField1.getText().substring(0,k);

         jTextField1.setText (n);}

}

private void campo4KeyTyped(java.awt.event.KeyEvent evt) {

    char []p={'1','2','3','4','5','6','7','8','9','0','.'};

    int b=0;

    for(int i=0;i<=10;i++){

    if (p[i]==evt.getKeyChar()){b=1;}

    }

    if(b==0){evt.consume();  getToolkit().beep(); }

}