private static void evaluateWhileStatement(TreeNode currentNode) throws FunctionReturned { //Complete this method ArrayList children=currentNode.getChildren(); TreeNode booleanExp=children.get(0); int x =0; boolean condition=evaluateBooleanExpression(booleanExp); while (condition==true) { evaluateBlock(children.get(x)); x++; TreeNode booleanExp=children.get(x); boolean condition=evaluateBooleanExpression(booleanExp); } } private static void evaluateIfStatement(TreeNode currentNode) throws FunctionReturned { //Complete this method ArrayList children=currentNode. getChildren(); TreeNode booleanExp=children.get(0); boolean condition=evaluateBooleanExpression(booleanExp); if (condition==true) { evaluateBlock(children.get(1)); } else { if (children.size()>2) { evaluateBlock(children.get(2)); } }

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Methods of StringBuilder class

The StringBuilder class can be used to create mutable strings. The methods defined in the StringBuilder class are widely used to manipulate and concatenate strings. It is a non-synchronized class which has public methods that can be accessed by multiple threads. It is not thread-safe.