@umaemongさんが投稿したコード一覧 | Codetter（こーどったー）

int size = map.size();
String[] keys = map.keySet().toArray(new String[size]);
String[] vals = map.values().toArray(new String[size]);

int size = map.size();
String[] keys = new String[size];
String[] vals = new String[size];
int i = 0;
for(Map.Entry<String, String> e : map.entrySet()) {

using (FileStream in  = new FileStream("in.txt", FileMode.Open))
using (FileStream out = new FileStream("out.txt", FileMode.Create)) {
  // ...ここで処理
}

try (
  FileInputStream in = new FileInputStream("in.txt");
  FileOutputStream out = new FileOutputStream("out.txt")
) {
  // ...ここで処理

FileInputStream in = null;
try {
  in = new FileInputStream("in.txt");
  FileOutputStream out = null;
  try {

FileInputStream in = null;
try {
  in = new FileInputStream("in.txt");
  FileOutputStream out = null;
  try {

FileInputStream in = null;
try {
  in = new FileInputStream("in.txt");
  FileOutputStream out = null;
  try {