java简单编程 一个简单的java程序
\u6700\u7b80\u5355\u7684java\u7a0b\u5e8fpublic static void main\u8fd9\u4e2a\u5730\u65b9\u5199\u9519\u4e86\uff0c\u62ec\u53f7\u4e0d\u662f\u5c16\u62ec\u53f7\uff0c
public static void main(String args[])
\u4f60\u8be5\u5b9a\u4e49\u4e2a\u7c7b
\u5982\u4e0b
class helloword
{
public static void main (String args[])
{
System.out.print("\u8fd9\u662f\u6211\u7684\u7b2c\u4e00\u4e2aJava Application \u7a0b\u5e8f\uff01");
System.out.println("\u8fd0\u884c\u6210\u529f\u4e86\uff01");
}
}
\u4fdd\u5b58\u7684\u65f6\u5019\u6587\u4ef6\u540d\u4e0e\u7c7b\u540d\u4e00\u5b9a\u8981\u4e00\u6837\uff0c\u6587\u4ef6\u540d\u4e3ahelloword.java
\u6211\u5fd8\u4e86class helloword \u7684\u540e\u9762\u6709\u6ca1\u6709\u5c0f\u62ec\u53f7
代码如下：
// App1.java
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
public class App1 {
public static void main(String[] args) throws IOException {
Scanner scanner = new Scanner(System.in);
FileWriter writer = new FileWriter(new File("data.txt"));
for (int i = 0; i < 5; i++) {
int score = scanner.nextInt();
writer.write(Integer.toString(score) + "");
}
writer.close();
}
}
// App2.java
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Scanner;
public class App2 {
public static void main(String[] args) throws IOException {
Scanner scanner = new Scanner(new File("data.txt"));
int[] scores = new int[5];
for (int i = 0; i < scores.length; i++) {
scores[i] = scanner.nextInt();
}
Arrays.sort(scores);
for (int score : scores) {
System.out.print(Integer.toString(score) + " ");
}
}
}
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