equal.java

刘艺编著的java教程的课本习题加例题代码 很有用哦！

public class Equal{
  public static void main(String args[]){
    String s1="My Java";
    String s2=" My Java ";
String s3="my java";
String s4=s2.trim();
    System.out.println(s1.equals(s4));
    System.out.println(s1.equals(s3));
    System.out.println(s1.equalsIgnoreCase(s3));
  }
}