Reduntanten Code auslagern

//Dein Code
...
f.enemy_intL.setBounds((int)f.screensize.getWidth() / 2 - 425, (int)f.screensize.getHeight() / 2 - 340, 500, 35);
    f.enemy_intL.setVisible(false);
    f.enemy_intL.setFont(font);
    f.enemy_intL.setForeground(Color.WHITE);

    f.survival_time_Label.setBounds((int)f.screensize.getWidth() / 2 - 425, (int)f.screensize.getHeight() / 2 + 325,    500, 35);
    f.survival_time_Label.setVisible(false);
    f.survival_time_Label.setFont(font);
    f.survival_time_Label.setForeground(Color.WHITE);
...

//Besser:
...
setStandardLook(f.enemy_intL,425,340,500,35);
setStandardLook(f.survival_time_Label,425,325,500,35);
...
private void setStandardLook(JLabel jl,int offsetx,int offsety,int width,int height){
jl.setBounds((int)f.screensize.getWidth() / 2 -offsetx, (int)f.screensize.getHeight() / 2 + offsety,    width, height);
    jl.setVisible(false);
    jl.setFont(font);
    jl.setForeground(Color.WHITE);
}