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40 lines
1.2 KiB
Java
40 lines
1.2 KiB
Java
package java.lang.reflect;
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public final class Array {
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private Array() { }
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public static native Object get(Object array, int index);
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public static native void set(Object array, int index, Object value);
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public static native int getLength(Object array);
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private static native Object makeObjectArray(Class elementType, int length);
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public static Object newInstance(Class elementType, int length) {
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if (length < 0) {
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throw new NegativeArraySizeException();
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}
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if (elementType.equals(boolean.class)) {
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return new boolean[length];
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} else if (elementType.equals(byte.class)) {
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return new byte[length];
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} else if (elementType.equals(char.class)) {
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return new char[length];
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} else if (elementType.equals(short.class)) {
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return new short[length];
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} else if (elementType.equals(int.class)) {
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return new int[length];
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} else if (elementType.equals(long.class)) {
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return new long[length];
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} else if (elementType.equals(float.class)) {
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return new float[length];
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} else if (elementType.equals(double.class)) {
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return new double[length];
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} else {
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return makeObjectArray(elementType, length);
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}
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}
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}
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