import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.IOException;public class Day25_7{ public static void main(String[] args)throws IOException{ //字節(jié)輸入流轉(zhuǎn)化字符輸入流 //InputStreamReader insR=new InputStreamReader(System.in); BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); //字節(jié)輸出流轉(zhuǎn)化字符輸出流 //OutputStreamWriter outsR=new OutputStreamWriter(System.out); BufferedWriter bw=new BufferedWriter(new OutputStreamWriter(System.out)); while(true){ //讀取一行字符串 String str=br.readLine(); str=str.toUpperCase(); //寫出字符串。 bw.write(str); //換行(跨平臺(tái)) bw.newLine(); //刷新緩沖區(qū)，否則字符串不打印 bw.flush(); } br.close(); bw.close(); }}