c02678cfac7c001d102aa44d7f17c5d5

java程序设计教程的源码

public class T {
	public static void main(String args[]) {
		StringBuffer a = new StringBuffer("HelloWorld!");
		a.setLength(5);
		a.setCharAt(0, 'h');
		a.append("value");
		a.append(true);
		a.insert(10, "=");
		System.out.println(a);
		System.out.println((1+2>3));

	}
}