we will implement array code how to update array in android. you can try this code
first, you have create a string array inside onCreate() overide method.
ArrayList<String> qtyidList = new ArrayList<String>();
second, you have to insert value in String ArrayList,
for(int i=0; i<10; i++){
qtyidList .add(i+":\t"+"items")
}
output:
0 item
1 item
2 item
3 item
4 item
5 item // you want update in this stack
6 item
7 item
8 item
9 item
// qtyidList.set(<int index>,<your string>)
qtyidList.set(6,"Android beginnerpoint tutorial");
output:
0 item
1 item
2 item
3 item
4 item
Android beginnerpoint tutorial // update
6 item
7 item
8 item
9 item
...................Remove the particular array index, try this code.............................
qtyidList.remove("7");
output:
0 item
1 item
2 item
3 item
4 item
Android beginnerpoint tutorial // update
7 item // remove the index but item 7 or 8 and item 9 shift.
8 item
9 item
first, you have create a string array inside onCreate() overide method.
ArrayList<String> qtyidList = new ArrayList<String>();
second, you have to insert value in String ArrayList,
for(int i=0; i<10; i++){
qtyidList .add(i+":\t"+"items")
}
output:
0 item
1 item
2 item
3 item
4 item
5 item // you want update in this stack
6 item
7 item
8 item
9 item
// qtyidList.set(<int index>,<your string>)
qtyidList.set(6,"Android beginnerpoint tutorial");
then update the value same index in array.
output:
0 item
1 item
2 item
3 item
4 item
Android beginnerpoint tutorial // update
6 item
7 item
8 item
9 item
...................Remove the particular array index, try this code.............................
qtyidList.remove("7");
output:
0 item
1 item
2 item
3 item
4 item
Android beginnerpoint tutorial // update
7 item // remove the index but item 7 or 8 and item 9 shift.
8 item
9 item
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