WebString s1 = "abc"; String s2 = "abc"; s1 = "ABC"; System.out.println(s2); 复制代码. 假设 String 对象是可变的,那么把 s1 指向的对象从小写的 "abc" 修改为大写的 "ABC" 之后,s2 理应跟着变化,那么此时打印出来的 s2 也会是大写的 "ABC"。 WebAug 3, 2024 · String s = "abc"; // statement 1 String s1 = new String("abcd"); // statement 2 A. 1 B. 2 C. 3 D. 4. Click to Reveal Answer. Correct Answer: C. In statement 1, “abc” is created in the String pool. In statement 2, first of all “abcd” is created in the string pool. Then it’s passed as an argument to the String new operator and another ...
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String s1 = new String("abc"); String s2 = new String("abc"); These two are allocated in different memory, so their reference are different. When we call . if (s1 == s2){ .. } // Comparing the reference, so return false if(s1.equal(s2)){..} // Comparing content, so return true So, what is. String s3 = "abc" String s4 = "abc"? WebAug 25, 2024 · String str1 = "abc"; // 在常量池中 String str2 = new String("abc"); // 在堆上. 当直接赋值时,字符串“abc”会被存储在常量池中,只有1份,此时的赋值操作等于是创建0 … pine bush for sale
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WebOct 15, 2024 · 常见面试问题 下面代码中创建了几个对象?new String("abc"); 答案众说纷纭,有说创建了1个对象,也有说创建了2个对象。答案对,也不对,关键是要学到问题底层 … WebJul 21, 2024 · String s1 = new String ("xyz"); //创建二个对象,一个引用. String s2 = new String ("xyz"); //创建一个对象,并且以后每执行一次创建一个对象,一个引用. 程序2. String s3 = "xyz"; //创建一个对象,一个引用. String s4 = "xyz"; //不创建对象,只是创建一个新的引用. 重要的是理解 ... WebNov 14, 2024 · String s = new String("abc"); String s1 = new String("abc"); System.out.println(s == s1); // false. s和s1都是在堆中新建了不同的对象,虽然内容一样,但 … top minecraft servers philippines