import java.io.*;
public class Hello
{
public static void main(String args[])
{
private final int N=15;
private final double PI=3.14;
private final boolean B=false;
private final char CH='a';
private final String S="string";
System.out.println("int:"+N);
System.out.println("double:"+PI);
System.out.println("char:"+CH);
System.out.println("boolean:"+B+"\n");
System.out.println("string:"+s);
}
}
參考答案:你变量定义在main函数里,改的方法很简单,两句话
1.去掉所有的private
2.将 S="string"; 改成 (小写)s = "string";
程序如下:
import java.io.*;
public class Hello {
public static void main(String args[]) {
final int N = 15;
final double PI = 3.14;
final boolean B = false;
final char CH = 'a';
final String S = "string";
System.out.println("int:" + N);
System.out.println("double:" + PI);
System.out.println("char:" + CH);
System.out.println("boolean:" + B + "\n");
System.out.println("string:" + S);
}
}
最后建议你不要用DOS下的编译器了,用eclipse或jbuilder这种工具在你写的时候就会给你提示(中文),哪里出错了!
我就用的Eclipse ^_^
