JAVA-String成员方法

package com.itheima;

public class string_02 {
    public static void main(String[] args) {
        String s1="itheima";
        String s2="itheima";
        String s3="Itheima";
        System.out.println(s1.equals(s2));
        System.out.println(s1.equals(s3));
        System.out.println("这是一道华丽的分割线---------------------");
        System.out.println(s1.equalsIgnoreCase(s2));
        System.out.println(s1.equalsIgnoreCase(s3));
        System.out.println("这是一道华丽的分割线---------------------");
        String s4=" itheima ";
        String s6="it heima";
        System.out.println(s4.trim());
        System.out.println(s4);
        System.out.println(s6.trim());



    }
}

执行结果

true
false
这是一道华丽的分割线---------------------
true
true
这是一道华丽的分割线---------------------
itheima
 itheima 
it heima

Process finished with exit code 0