how to add a character to a string in any place code example

Example 1: append a character to string java

1. String otherString = "helen" + character;

2. otherString +=  character;

Example 2: how to add a character to a string in java

// Define a character
char ch='A';
// Define a string
String str="pple";
str= ch+str;   // str will change to "Apple"