.java 鍙互鎸囧畾緙栫爜鏍煎紡
.xml 鏈夋垚鐔熺殑璇誨啓宸ュ叿
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
public class FileTest {
static String fileName = "d:\\word.txt";
public static void main(String[] args) throws Exception {
System.out.println(readFile(fileName));
}
public static String readFile(String filePathAndName) {
String fileContent = "";
try {
File f = new File(filePathAndName);
if (f.isFile() && f.exists()) {
InputStreamReader read = new InputStreamReader(
new FileInputStream(f), "unicode");
BufferedReader reader = new BufferedReader(read);
String line;
while ((line = reader.readLine()) != null) {
fileContent += line;
}
read.close();
}
} catch (Exception e) {
System.out.println("璇誨彇鏂囦歡鍐呭鎿嶄綔鍑洪敊");
e.printStackTrace();
}
return fileContent;
}
}
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
public class FileTest {
static String fileName = "d:\\word.txt";
public static void main(String[] args) throws Exception {
System.out.println(readFile(fileName));
}
public static String readFile(String filePathAndName) {
String fileContent = "";
try {
File f = new File(filePathAndName);
if (f.isFile() && f.exists()) {
InputStreamReader read = new InputStreamReader(
new FileInputStream(f), "unicode");
BufferedReader reader = new BufferedReader(read);
String line;
while ((line = reader.readLine()) != null) {
fileContent += line;
}
read.close();
}
} catch (Exception e) {
System.out.println("璇誨彇鏂囦歡鍐呭鎿嶄綔鍑洪敊");
e.printStackTrace();
}
return fileContent;
}
}
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鏈鍐呭涓昏鏈夛細
Action綾葷殑瀹炵幇鏂規硶錛屽悜瑙嗗浘灞傝煩杞椂鐨勭被鍨嬩互鍙夾ction鏂規硶鐨勮皟鐢紒 闃呰鍏ㄦ枃
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class A{
{
System.out.print(5);//絎簲姝ワ紱絎崄涓姝ワ紱
}
static String str = "x" ;//絎竴姝ワ紱
String s="y";//絎叚姝ワ紱絎崄浜屾錛?br />
static{
System.out.print("1");//絎簩姝ワ紱
}
public A(){
System.out.print("2");//絎竷姝ワ紱絎崄涓夋錛?br />
}
}
class B extends A{
String s="m"; //絎叓姝ワ紱絎崄鍥涙錛?br />
static{
System.out.print("a");//絎笁姝ワ紱
}
static String str = "n" ;//絎洓姝ワ紱
{
System.out.print(6);//絎節姝ワ紱絎崄浜旀錛?br />
}
public B(){
System.out.print("b");//絎崄姝ワ紱絎崄鍏錛?br />
}
}
public class InitialOrder{
public static void main(String[] ars){
A ab = new B(); //鎵ц鍒版澶?緇撴灉: 1a526b
ab = new B(); //鎵ц鍒版澶?緇撴灉: 1a526b526b
}
}
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public class Recursion {
public static long factorial(int i) {
if (i < 0)
return -1;
else if (i == 0 || i == 1)
return 1;
else
return i * factorial(i - 1);
}
public static int sum(int i) {
if (i == 0)
return 0;
else
return i + sum(i - 1);
}
public static int fibonacci(int i) {
if (i == 0 || i == 1)
return 1;
else
return fibonacci(i - 1) + fibonacci(i - 2);
}
public static void main(String[] args) {
for (int i = 0; i < 5; i++) {
System.out.println(i + "!= " + factorial(i));
System.out.println("sum(" + i + "!) = " + sum(i));
System.out.println("fibonacci(" + i + ")= " + fibonacci(i));
System.out.println("=========================");
}
}
}
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