"=="과 "equals()"의 차이점 탐색

 }
 public class EqualsTest {
     public static void main(String[] args) {
         // ：int、float、double、boolean、char  
         char ch1 = 'a';
         char ch2 = 'a';
         System.out.println("char ：" + (ch1==ch2));
         
         int i1 = 100;
         int i2 = 100;
         System.out.println("int ：" + (i1==i2));
         
         // 
         String str1 = new String("liaoshaoshao");
         String str2 = new String("liaoshaoshao");
         String str3 = str2;
         System.out.println(" new ：" + (str1==str2));
         System.out.println(" ：" + (str3==str2));
         
         // 
         AnotherClass ac1 = new AnotherClass();
         AnotherClass ac2 = new AnotherClass();
         AnotherClass ac3 = ac2;
         System.out.println(" new ：" + (ac1==ac2));
         System.out.println(" ：" + (ac3==ac2));
     }
 }