java - 在java中将单个字符 append 到字符串或char数组？

Question

是否可以在 java 中的 array 或 string 的末尾 append 单个字符。示例:

private static void /*methodName*/ () {            
    String character = "a"
    String otherString = "helen";
    //this is where i need help, i would like to make the otherString become 
    // helena, is there a way to do this?               
}

Answer 1

1. String otherString = "helen" + character;

2. otherString +=  character;