Update Stacks.java

Mahmoud khalil · web-flow · commit 9ac82a1a2662 · 2018-04-01T20:50:41.000+03:00
diff --git a/Data Structures/Stacks/Stacks.java b/Data Structures/Stacks/Stacks.java
@@ -43,6 +43,7 @@ public void push(int value){
 			stackArray[top] = value;
 		}else{
 			resize(maxSize*2);
+                        push(value);// don't forget push after resizing
 		}
 	}
 
@@ -58,6 +59,7 @@ public int pop(){
 
 		if(top < maxSize/4){
 			resize(maxSize/2);
+			return pop();// don't forget pop after resizing
 		}
 		else{
 			System.out.println("The stack is already empty");
@@ -80,9 +82,11 @@ public int peek(){
 	}
 
 	private void resize(int newSize){
-		private int[] transferArray = new int[newSize];
+		//private int[] transferArray = new int[newSize]; we can't put modifires here !
+                int[] transferArray = new int[newSize];
 
-		for(int i = 0; i < stackArray.length(); i++){
+		//for(int i = 0; i < stackArray.length(); i++){ the length isn't a method .
+                for(int i = 0; i < stackArray.length; i++){
 			transferArray[i] = stackArray[i];
 			stackArray = transferArray;
 		}

Original file line number	Diff line number	Diff line change
`@@ -43,6 +43,7 @@ public void push(int value){`
`43`	`43`	`stackArray[top] = value;`
`44`	`44`	`}else{`
`45`	`45`	`resize(maxSize*2);`
	`46`	`+ push(value);// don't forget push after resizing`
`46`	`47`	`}`
`47`	`48`	`}`
`48`	`49`
`@@ -58,6 +59,7 @@ public int pop(){`
`58`	`59`
`59`	`60`	`if(top < maxSize/4){`
`60`	`61`	`resize(maxSize/2);`
	`62`	`+ return pop();// don't forget pop after resizing`
`61`	`63`	`}`
`62`	`64`	`else{`
`63`	`65`	`System.out.println("The stack is already empty");`
`@@ -80,9 +82,11 @@ public int peek(){`
`80`	`82`	`}`
`81`	`83`
`82`	`84`	`private void resize(int newSize){`
`83`		`- private int[] transferArray = new int[newSize];`
	`85`	`+ //private int[] transferArray = new int[newSize]; we can't put modifires here !`
	`86`	`+ int[] transferArray = new int[newSize];`
`84`	`87`
`85`		`- for(int i = 0; i < stackArray.length(); i++){`
	`88`	`+ //for(int i = 0; i < stackArray.length(); i++){ the length isn't a method .`
	`89`	`+ for(int i = 0; i < stackArray.length; i++){`
`86`	`90`	`transferArray[i] = stackArray[i];`
`87`	`91`	`stackArray = transferArray;`
`88`	`92`	`}`