str = a + \"\"str = String.valueOf(a)
a = ch - '0'
A = new Integer(a)A = Integer.valueOf(a)
arr1 = list.stream().mapToInt(Integer::valueOf).toArray();
int a
char ch
ch = char(a + '0')
arr2 = Arrays.stream(integers1).mapToInt(Integer::valueOf).toArray();
char[] ch[]
str = String.valueOf(ch[])
ch[] = str.toCharArray()
list = Arrays.asList(integers1);
ch = str.charAt(index)
list = Arrays.stream(data).boxed().collect(Collectors.toList());
integers1 = Arrays.stream(data).boxed().toArray(Integer[]::new);
String str
List list
integers2 = list.toArray(new Integer[0]);
Integer.parseInt(str)
Integer A
a = A.intValue()
int[] a[]
Integer[] A[]
str = String.valueOf(ch)
