String to Array, Array to String

//String to Array
String context = "my name is toy";
String[] contextArray = context.split("", -1) //공백포함하여 배열 생성

//Array to String
StringBuffer result = new StringBuffer();
for(String s : contextArray){
	result.append(S);
}
result.toString().replace(" ",""); //공백제거하여 문자열 생성