stringopdemo.java

JAVA编程思想源代码 值得一下 很难找的

package chapter8;

public class StringOpDemo {

	public static void main(String[] args) {
		String str = "This is the original string";
		System.out.println("length"+str.length());
		String strBak = str;
		System.out.println("原字符串：" + str);
		String toDelete = "    original   ";
		toDelete = toDelete.trim(); // 先将用户输入的字符串处理，去除多余空格
		// 第一种方法
		if (str.startsWith(toDelete)) {
			str = str.substring(toDelete.length());
		} else if (str.endsWith(toDelete)) {
			str = str.substring(0, str.length() - toDelete.length());
		} else {
			int index = str.indexOf(toDelete);
			System.out.println("index:"+index);
			if (index != -1) {
				String str1 = str.substring(0, index);
				System.out.println("str1:"+str1+"*");
				String str2 = str.substring(index + toDelete.length());
				System.out.println("str2:"+str2+"*");
				str = "第一种方法得到的结果：" + str1 + str2;
			} else {
				System.out.println("string \"" + toDelete + "\" not found");
			}
		}
		System.out.println(str);
		// 第二种方法
		String result = strBak.replace(toDelete, "");
		System.out.println("第二种方法得到的结果：" + result);

	}

}