————————————————Test.java——————————————————

public class Test{
    public static void main(String[] args){
        char[] a={'h','e','l','l','o'};
        char[] b={'h','e','l','l','o'};
        
        String str1 = "hello world";
        String str2 = "hello world";
        
        System.out.println("\t\t第一种数组比较");
        System.out.println("---------==比较结果--------");
        if(a==b){
            System.out.println("相同");
        }else{
            System.out.println("不相同");
        }   
        
        System.out.println("---------equals比较结果--------");
        if(a.equals(b)){
            System.out.println("相同");
        }else{
            System.out.println("不相同");
        }
        
        System.out.println("\t\t第二种字符串比较");
        System.out.println("---------==比较结果--------");
        if(str1==str2){
            System.out.println("相同");
        }else{
            System.out.println("不相同");
        }   
        
        System.out.println("---------equals比较结果--------");
        if(str1.equals(str2)){
            System.out.println("相同");
        }else{
            System.out.println("不相同");
        }   
    }
}

一楼的答案是正确的