replacefirst1.java

JAVA编程思想源代码 值得一下 很难找的

package chapter8;

public class ReplaceFirst1 {

	public static void main(String[] args) {
		String str = "abcaaacaaaa";

		System.out.println("str replace 1 is " + str.replaceFirst("a.", "e"));
		System.out.println("str is " + str);
		System.out.println("str replace 2 is " + str.replaceFirst("a.a", "e"));
		System.out.println("str replace 3 is "
				+ str.replaceFirst("a{1,3}", "e"));
		System.out.println("str replace 4 is " + str.replaceFirst("\\w", "e"));
		System.out.println("str replace 5 is " + str.replaceFirst("a|b", "e"));

	}
}