37 lines
939 B
Java
37 lines
939 B
Java
class BinaryNode extends ExpressionNode {
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BinaryNode(String aOp, ExpressionNode aLeft, ExpressionNode aRight)
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{
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left = aLeft;
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right = aRight;
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op = aOp;
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}
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String print(String indent)
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{
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StringBuffer result = new StringBuffer(indent);
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result.append(getClass().toString());
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result.append(" ");
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result.append(op);
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result.append("\n");
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indent += " ";
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if (left == null) {
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result.append(indent);
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result.append("null\n");
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}
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else
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result.append(left.print(indent));
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if (right == null) {
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result.append(indent);
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result.append("null\n");
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}
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else
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result.append(right.print(indent));
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return result.toString();
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}
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protected ExpressionNode left;
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protected ExpressionNode right;
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protected String op;
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} |