java输出所有的字符编码

使用Java.nio.charse.Charset.availableCharsets()方法

public static void main(String[] arga) throws Exception{

int i=0;

Set<String> names=Charset.availableCharsets().keySet();

for (Iterator<String> iter = names.iterator(); iter.hasNext();) {

String charsetName = (String) iter.next();

if(Charset.isSupported(charsetName)){

System.out.print(String.format("%-20s", charsetName));

i++;

if(i%5==0){

System.out.println();

}

}

}

}

//输出20列，左对齐(-号表示左对齐)

System.out.print(String.format("%-20s", charsetName));