Input of text to electronic apparatus

The invention relates to the method used to input character to electronic device. It includes the following steps: displaying input character key in the text input keyboard touch sensitive region of the display screen which displays the first input alphabet key aggregate; forecasting the potential next alphabet followed the input alphabet; using one key action to select input alphabet; marking the display of the second input alphabet key aggregate of the potential next alphabet which replaces the first alphabet aggregate, fully fills in the text input keyboard touch sensitive region.